The Clone Wars - S4E6 - "Nomad Droids"

The fortune cookie is "Who's the more foolish, the fool or the fool who follows him?" which Obi-Wan says in A New Hope [1:07:29].

1:31 and 4:31 - C-3PO (to R2):  "Did you hear that?"  He also asks him this in A New Hope [2:47].  The first instance in this episode occurs while they're going down the hallway and the ship is under attack, and these circumstances also mirror those in A New Hope.

2:55 - C-3PO:  "R2, do something!  Get us out of here!"  Han Solo also says this to Chewbacca in A New Hope:  "Chewie, get us outta here!" [55:26].

6:25 - The Big Hay-Zu:  "So, you are the intruders."

C-3PO:  "Intruders, oh, hardly, your worshipfulness."

Han calls Leia "worshipfulness" in A New Hope ("Look, your worshipfulness, let's get one thing straight:  I take orders from just one person:  me!" [1:26:04]), and C-3PO calls Jabba "worshipfulness" in Return of the Jedi ("I am here, your worshipfulness" [15:02]).

9:36 - C-3PO (in response to R2's beeps):  "I heartily agree."  He uses the same expression in A New Hope after Luke suggests he wait outside by the speeder and says they want to avoid trouble in the cantina:  "I heartily agree with you, sir" [45:45].

15:43 - C-3PO:  "It's all your fault, R2, all your fault."  He places the blame on R2 twice in A New Hope too:  "I don't know what all this trouble is about, but I'm sure it must be your fault" [52:03] and "This is all your fault" [1:36:11] (when 3PO is tangled in wires in the Millennium Falcon).  He also blames himself when he thinks that Luke, Leia, Han, and Chewbacca are dying in the trash compactor:  "It's all my fault!" [1:24:42].

18:18 - C-3PO:  "Goodness gracious me!"  He also uses this expression in Return of the Jedi, at the door of Jabba's palace [5:52].

---

The pit droids' deception of projecting a hologram image of a leader amid smoke and lightning is similar to what the wizard does in The Wizard of Oz.

The Clone Wars - S4E5 - "Mercy Mission"

The title comes from A New Hope, where Darth Vader says to Leia, "You weren't on any mercy mission this time" [7:47].

6:50 - Sinker:  "Comin' here was a bad idea."

Boost:  "I'm beginnin' to agree with ya."

In The Empire Strikes Back, Luke has the same response to R2's beeps:  "If you're sayin' comin' here was a bad idea, I'm beginnin' to agree with ya" [43:55].

8:38 - C-3PO:  "Impossible clones!"  He similarly describes Han Solo in The Empire Strikes Back:  "Impossible man" [7:40].

10:00 - C-3PO:  "I have a bad feeling about this."

10:21 - C-3PO - "I suppose that could have been worse" and after rubble traps him and R2, "Now it is."  In A New Hope, there's a similar exchange in the trash compactor.  Leia says to Han, "It could be worse," and after an unsettling noise, he replies, "It's worse" [1:19:41].

12:04 - C-3PO (to R2 as bugs fly around him):  "Did you see that?"  Perhaps coincidentally, he asks a similar question (also to R2) at the beginning of A New Hope:  "Did you hear that?" [2:47].

12:39 - C-3PO (in response to a tree saying he does not belong):  "I heartily agree; being here is a terrible mistake."  He uses the same expression in A New Hope after Luke suggests he wait outside by the speeder and says they want to avoid trouble in the cantina:  "I heartily agree with you, sir" [45:45].

17:01 - C-3PO:  "R2, we're doomed."  He also says "We're doomed" twice (both times to R2) in A New Hope [3:04, 16:02], once (to Han, Leia, and Chewbacca) in The Empire Strikes Back [1:00:38], and once (to R2) in Return of the Jedi [10:03].

17:47 - C-3PO:  "Riddles are my specialty."  He pronounces "specialty" with five syllables, just like Obi-Wan does in Revenge of the Sith when he tells Palpatine, "Sith Lords are our specialty" [12:14].

The Clone Wars - S4E4 - "Shadow Warrior"

3:05 - Padmé (to Boss Lyonie):  "With all due respect, your course of action is based on lies."  In The Phantom Menace, Qui-Gon and Obi-Wan's pilot also says, "With all due respect" ("With all due respect, the ambassadors for the Supreme Chancellor wish to board immediately" [2:06]), and Obi-Wan says it in Revenge of the Sith while speaking to Mace Windu about Anakin ("With all due respect, Master, is he not the chosen one?" [40:32]).  As Queen Amidala, Padmé also uses the phrase "course of action" in The Phantom Menace:  "I will not condone a course of action that will lead us to war" [9:51].

The Clone Wars - S4E3 - "Prisoners"

0:36 - Narrator:  "Count Dooku commands his sinister agent Riff Tamson to use any means necessary to bring Prince Lee-Char out of hiding for he knows that hope does remain as long as the prince is alive."  The phrase "sinister agent" also appears (as a plural) in the opening crawl of A New Hope:  "Pursued by the Empire's sinister agents, Princess Leia races home aboard her starship, custodian of the stolen plans that can save her people and restore freedom to the galaxy...."

1:58 - Kit Fisto:  "Ah, eels, very dangerous."  This is based on Sallah's "Asps.  Very dangerous." in Raiders of the Lost Ark [1:00:50].

4:20 - Riff Tamson:  "The Jedi's resistance to pain is impressive."  This is somewhat similar to Vader's line about Leia in A New Hope:  "Her resistance to the mind probe is considerable" [51:15].

6:47 - Ahsoka:  "Monnk, am I glad to see you!"  Luke uses this same greeting in A New Hope:  "Ben Kenobi?  Boy, am I glad to see you!" [30:35]

7:21 - Tamson:  "I grow of waiting, Jedi.  Where is the prince?"  Tarkin has a similar line in A New Hope:  "I grow tired of asking this, so it'll be the last time:  where is the Rebel base?" [58:18].

9:30 - Lee-Char:  "But it's time for me to lead, and this, I feel, is my only course of action."  Queen Amidala also uses the phrase "course of action" in The Phantom Menace:  "I will not condone a course of action that will lead us to war" [9:51].

11:45 - Anakin (after Kit Fitso tells him to use the Force to create a bubble for Padmé to breathe from):  "I'm on it."  Probably just coincidentally, Luke says the same thing in A New Hope, after Red Leader warns him to avoid blaster fire [1:47:08].

13:47 - Tamson:  "Well, Nossor Ri, would you like to join this pitiful little fish and his dead father?"  Palpatine also uses the description "pitiful little" in Return of the Jedi:  "It was I who allowed the Alliance to know the location of the shield generator.  It was quite safe from your pitiful little band." [1:32:45].

The Clone Wars - S4E2 - "Gungan Attack"

0:54 - Count Dooku (about Lee-Char):  "Do not underestimate this boy, Tamson."  Warnings against underestimation occur twice in Return of the Jedi.  Luke tells Jabba, "It's your choice, but I warn you not to underestimate my powers" [24:26], and later Yoda tells Luke, "Luke, do not, do not underestimate the powers of the Emperor" [43:31].  In The Phantom Menace, Nute Gunray advises a battle droid, "These Jedi are not to be underestimated" [10:43], and in A New Hope, Vader tells Tarkin, "Don't underestimate the Force" [1:16:33].

2:23 - Anakin:  "We're gonna have to get ourselves to the surface and get off this rock."  Luke uses a similar expression in A New Hope; after C-3PO asks if there's anything he can do to help, he replies, "Not unless you can alter time, speed up the harvest, or teleport me off this rock" [19:58].

5:45 - Riff Tamson:  "Spring the trap."  The circumstances are different, but Obi-Wan also says this in Revenge of the Sith [8:16].

7:24 - Anakin:  "Our only hope is that Master Yoda can send help in time."

Captain Ackbar:  "No, Prince Lee-Char is our only hope."

Leia uses the phrase "only hope" twice in A New Hope ("Help me, Obi-Wan Kenobi; you're my only hope" [35:35] and "You must use the information in this R2 unit to help plan the attack; it's our only hope" [1:38:49]); C-3PO uses it once in The Empire Strikes Back ("Your highness, we must take this last transport; it's our only hope" [31:49]); Obi-Wan uses it once, referring to Luke, in Return of the Jedi ("You were our only hope" [47:24]); and Luke uses it once, referring to Leia, in Return of the Jedi ("If I don't make it back, you're the only hope for the Alliance" [1:19:39]). Sio Bibble also uses it in The Phantom Menace: "Our only hope is for the senate to side with us" [23:48].

10:46 - Padmé:  "Anakin, it's your move."  In Revenge of the Sith, Obi-Wan says this to General Grievous:  "Your move" [58:07].

15:50 - Jar Jar:  "Ani, meesa so happy to see you."  He has a similar greeting (to Obi-Wan) in Attack of the Clones:  "Meesa so smilin' to seein' yousa!" [7:53].

The Clone Wars - S4E1 - "Water War"

6:42 - Captain Ackbar:  "It's an attack!"  This is patterned after his famous "It's a trap!" in Return of the Jedi [1:35:03].

8:54 - Ahsoka:  "Blue leader, standing by."

Clone trooper:  "Red leader, standing by."

There's a similar sequence in A New Hope where the pilots report in before the assault on the Death Star:  "Red ten, standing by."  "Red seven, standing by."  "Red three, standing by."  "Red six, standing by."  "Red nine, standing by."  "Red two, standing by."  "Red eleven, standing by."  "Red five, standing by." [1:45:26].

12:42 - Lee-Char (to Ahsoka):  "Get us out of here!"  In A New Hope, Han Solo also says this (to Chewbacca):  "Chewie, get us outta here!" [55:26].

14:20 - Kit Fisto:  "We seem to have won this round."  Padmé uses this same phrase in The Phantom Menace, referring to the Trade Federation battle droids:  "They win this round" [1:58:17].

16:49 - Captain Ackbar (to the Mon Calamari soldiers and clone troopers):  "Steady, steady."  In The Phantom Menace, Jar Jar also says this (but to the Gungan soldiers) [1:48:30].

18:37 - After running his mini-sub into a Hydroid Medusa, Kit Fisto smiles, like he does in Attack of the Clones:

---

According to the Star Wars website, Riff Tamson, the shark-like Separatist commander in this episode, is a Karkarodon.  This species name seems to be derived from καρχαρίας, the Greek word for shark.

The Clone Wars - S3E22 - "Wookiee Hunt"

2:42 - O-Mer: "We feared the worst."  In A New Hope, one of the rebels says the same thing to Leia when she arrives on Yavin IV:  "When we heard about Alderaan, we feared the worst" [1:38:45].

4:04 - Trandoshan (as Ahsoka jumps into the window of the ship):  "What the?"  In Attack of the Clones, an alien on Coruscant makes this same exclamation as he sees Obi-Wan flying through traffic while hanging from a droid [15:08]; Han Solo says it in A New Hope after emerging from hyperspace into a meteor shower [1:03:15], and in Return of the Jedi, a scout trooper says this after being hit by Wicket [1:05:38].

12:55 - Ahsoka (to Chewbacca):  "We need your help."  Queen Amidala says almost the same thing to Jar Jar in The Phantom Menace ("I need your help" [1:37:55]); Obi-Wan to Padmé in Revenge of the Sith ("Padmé, I need your help" [1:38:44]); and Obi-Wan to Luke in A New Hope ("I need your help, Luke.  She [Leia] needs your help." [36:03]).

19:02 - One of the items in the Trandoshan trophy room is the crystal skull from Indiana Jones and the Kingdom of the Crystal Skull:

19:54 - Ahsoka (to Garnac):  "You're beaten."  In The Empire Strikes Back, Vader also says this (to Luke):  "You are beaten" [1:50:02].

The Clone Wars - S3E21 - "Padawan Lost"

1:36 - Anakin (to Ahsoka):  "Don't get cocky."  In A New Hope, Han says this to Luke after he shoots one of the Death Star's sentry ships:  "Great, kid!  Don't get cocky." [1:35:27].

3:15 - Anakin (to the clone troopers):  "Steady, steady.  Wait for my move."  In The Phantom Menace, Jar Jar also says, "Steady, steady" (but to the Gungan soldiers) [1:48:30].

5:02 - Anakin: "Where could she [Ahsoka] be?"  Luke has a similar line in A New Hope as he's trying to raise C-3PO on his comlink:  "Where could he be?" [1:22:12 and 1:23:19], and C-3PO himself has a similar line a bit later in A New Hope:  "Where could they be?" [1:29:33].

12:23 - Jinx (to Ahsoka):  "There were other Padawans here that once thought as you do now."  This bears some similarity to what Vader says to Luke in Return of the Jedi:  "Obi-Wan once thought as you do" [1:24:48].

20:12 - Kalifa - "Please, Ahsoka, leave me."  As he's dying, Anakin says basically the same thing (to Luke) in Return of the Jedi:  "Now, go, my son, leave me" [2:00:45].

The Clone Wars - S3E20 - "Citadel Rescue"

1:04 - Anakin:  "We're gonna have to fight our way off this rock."  In A New Hope, Luke disdainfully refers to Tatooine using the same expression; after C-3PO asks if there's anything he can do to help, Luke replies, "Not unless you can alter time, speed up the harvest, or teleport me off this rock" [19:58].

3:15 - Sobeck (to Dooku, about the hyperspace coordinates):  "I will see to it that they are soon back in our possession."  While the specific diction is a bit different, Vader says something similar in A New Hope during a meeting on the Death Star:  "The plans you refer to will soon be back in our hands" [37:52].

4:00 - In the background of this shot, Commander Cody jumps on top of a crab droid and fires his blaster into it.  In Revenge of the Sith, an-other clone trooper does the same thing [1:20:01].

[source]

6:34 - Anakin (to Ahsoka, discussing the Jedi's role in the war):  "But we aren't soldiers; we're peacekeepers."  Mace Windu also says this in Attack of the Clones, although slightly differently:  "We're keepers of the peace, not soldiers" [4:49].

6:49 - Ahsoka:  "Did you hear that?"

Even Piell:  "Yes, we're going to have company."

Both of these lines also appear in A New Hope.  At the beginning of the movie, C-3PO asks R2-D2, "Did you hear that?" [2:47] (incidentally, this is the first line of dialogue), and later, Han yells, "Luke, we're gonna have company!" [1:15:46].

7:13 - Sobeck:  "Tighten your grip, K2-B4."  Leia uses this same expression in A New Hope:  "The more you tighten your grip, Tarkin, the more star systems will slip through your fingers" [57:44].

12:35 - Sobeck:  "I will deal with this personally."  It's probably coincidental, but this seems to combine Grievous' line "I will deal with this Jedi slime myself" in Revenge of the Sith [58:03], Vader's line "See to it personally, commander" in A New Hope [8:42], and Vader's "I will deal with them myself," referring to the Rebel strike force, in Return of the Jedi [56:10].

16:05 - Wilhelm scream (Clone trooper)

20:36 - There's a brief musical cue of the Imperial March as Tarkin and Anakin shake hands.

The Clone Wars - S3E19 - "Counterattack"

3:17 - Count Dooku:  "You may cease the propriety, Commander Sobeck."  Vader says basically the same thing (to Moff Jerjerrod) in Return of the Jedi:  "You may dispense with the pleasantries, commander" [3:58].

15:26 - Anakin (to Rex):  "Throw me a charge."  Han Solo says the same thing in Return of the Jedi:  "Throw me another charge" [1:51.25].

The Clone Wars - S3E18 - "The Citadel"

4:55 - Fives (about being carbon frozen):  "Are, uh, we sure this thing is safe?  I don't want to end up a wall decoration."  In A New Hope, C-3PO also asks this (to R2 about the escape pod):  "Are you sure this thing is safe?" [7:18].  The "wall decoration" part is a reference to what later happens to Han Solo in Return of the Jedi.

6:52 - Tactical droid K2-B4 (to the Republic's re-programmed battle droid):  "What is your cargo?"  In Return of the Jedi, Admiral Piett asks a similar question:  "Shuttle Tydirium, what is your cargo and destination?" [55:27].  More generally, the whole situation of sneaking into enemy territory in a stolen ship is similar.

The Clone Wars - S3E17 - "Ghosts of Mortis"

1:45 - Ahsoka (speaking about the Jedi shuttle):  "After that, I have no guarantees she'll hold together."  In A New Hope, Han Solo (referring to the Millennium Falcon) uses the same expression:  "Don't worry; she'll hold together" [1:34:57].

3:29 - Father (to Anakin):  "Do not underestimate my son."  Warnings against underestimation occur twice in Return of the Jedi.  Luke tells Jabba, "It's your choice, but I warn you not to underestimate my powers" [24:26], and later Yoda tells Luke, "Luke, do not, do not underestimate the powers of the Emperor" [43:31].  In The Phantom Menace, Nute Gunray advises a battle droid, "These Jedi are not to be underestimated" [10:43], and in A New Hope, Vader tells Tarkin, "Don't underestimate the Force" [1:16:33].

5:25 - Qui-Gon:  "Remember your training, Anakin:  trust your instincts."  This is similar to what he tells him in The Phantom Menace:  "Feel, don't think; use your instincts" [57:47].

8:08 - Father (to Obi-Wan):  "You cannot interfere!"  This is similar to what Obi-Wan says to Luke in The Empire Strikes Back:  "If you choose to face Vader, you will do it alone.  I cannot interfere." [1:24:25].

9:25 - Anakin's vision of the future includes Obi-Wan's "You were my brother, Anakin" from Revenge of the Sith [2:00:25], Vader's "I hate you" from Revenge of the Sith [2:00:15], and the Death Star's destruction of Alderaan from A New Hope [59:05]:

10:20:  Son:  "Join me, and together we will destroy this emperor you see in your vision, and we shall end war, corruption, and suffering throughout the galaxy."  As in the previous episode, there's a resemblance between this line and what Vader says to Luke in The Empire Strikes Back ("Join me, and I will complete your training" [1:50:39] and "Join me, and together we can rule the galaxy as father and son" [1:51:45]) and what Dooku says to Obi-Wan in Attack of the Clones ("You must join me, Obi-Wan, and together we will destroy the Sith!" [1:33:07]).

11:50 - Anakin (to Obi-Wan):  "You will try to stop me."  In Revenge of the Sith, after Obi-Wan says, "I will do what I must," Anakin replies with a similar line:  "You will try" [1:47:46].

13:43 - Ahsoka:  "Mm, nice job."  She says this about Obi-Wan's progress in climbing out of a chasm.  It's a bit unclear whether she means this genuinely or sarcastically, but if it's the latter, there's a resemblance to Obi-Wan's sarcastic "Good job" about Anakin and Padmé's attempt to rescue him in Attack of the Clones [1:45:00].

20:07 - When the Father dies, he disappears in the same way that Yoda does in Return of the Jedi [45:07].  Obi-Wan's death in A New Hope [1:32:22] is similar but occurs in between shots, not within a single shot.

---

Starting around 8:33 during Anakin's conversation with the Son, there's a brief musical cue that's similar to "Battle of the Heroes" from Revenge of the Sith, and there are musical cues of the Imperial march at the end of Anakin's vision and at around 11:44 when Anakin talks to Obi-Wan.