4:57 - Lando: "I'd be taking an awful big risk." Tarkin makes almost the same comment in A New Hope: "I'm taking an awful risk, Vader" [1:36:30].
7:26 - Ezra: "We can fight. We have allies."
Kanan: "Do you understand what you're saying? You saw what we're up against. Look!"
Ezra: "I'm not afraid."
There are two similarities here. In A New Hope, as Han is preparing to leave before the Battle of Yavin, Luke says to him, "You know what's about to happen, what they're up against" [1:41:48]. Luke also says, "I'm not afraid" in The Empire Strikes Back [57:22].
8:14 - Ezra: "So what's the plan for gettin' out of here?" In A New Hope, Han asks Luke almost the same thing: "What's your plan?" [1:11:56]
9:05 - Imperial officer (to Admiral Konstantine): "Admiral, I'm scanning a ship leaving the surface in sector four. Its transpoder codes match those of the stolen Imperial shuttle." An Imperial officer says something similar about the Millennium Falcon in A New Hope: "We've captured a freighter entering the remains of the Alderaan system; its marking match those of a ship that blasted its way out of Mos Eisley" [1:05:58].
10:31 - Hera (after Kanan asks where they're going): "What are you talking about? We're part of the Rebellion now." This line appears three times in A New Hope: twice, C-3PO asks R2-D2, "What are you talking about?" [6:51 and 9:47], and later, in response to Luke's urge to rescue Leia, Han Solo asks, "What are you talkin' about?" [1:11:03]. In Attack of the Clones, Anakin also asks Padmé, "What are you talking about?" [1:43:07].
13:22 - Rebel pilot (referring to Vader): "He's coming in too fast." Luke says nearly the same thing about the Death Star's sentry ships in A New Hope: "They're coming in too fast!" [1:34:45]
15:08 - Ahsoka (referring, albeit unknowingly, to Vader): "The Force is strong with him." In a Jedi counsel meeting in The Phantom Menace, Ki-Adi Mundi says this about Anakin [1:33:06], and in The Empire Strikes Back, Palpatine, speaking to Vader, says this about Luke [53:46], but the situation is more like that in A New Hope where Vader says, "The Force is strong with this one" [1:55:41], also describing Luke, although unknowingly. In Revenge of the Sith, Palpatine tells Anakin, "The Force is strong with you" [1:16:32].
16:38 - Vader (giving orders to Admiral Konstantine): "I want these rebels alive." Vader gives the same command to the stormtroopers in A New Hope ("Bring me the passengers; I want them alive!" [6:08]) and to the bounty hunters in The Empire Strikes Back ("You are free to use any methods necessary, but I want them alive, no disintegrations" [1:06:14]).
16:41 - There's some resemblance between this shot from within a TIE fighter firing on The Ghost and a shot in A New Hope from within a TIE fighter firing on the Millennium Falcon [1:34:31]:
19:13 - Kanan (telling Ahsoka about the encounter with Vader): "I haven't sensed a presence like that since..." Vader, sensing Obi-Wan, says something similar in A New Hope: "I sense something, a presence I've not felt since...." [1:06:45].
21:16 - Emperor Palpatine (to Vader): "Be patient, my old friend." Advice on being patient and the appellation "old friend" occur many times in the movies, but the strongest similarity here is to what Palpatine says to Vader in Return of the Jedi: "Patience, my friend" [38:57].
21:25 - Vader (to Palpatine): "As you wish, my master." The phrase "As you wish" occurs a number of times in the original trilogy: in A New Hope, Vader says it after Tarkin asks him to release General Motti from his Force choke [38:45]; in The Empire Strikes Back, Boba Fett says it after Vader warns the bounty hunters against disintegrations [1:06:22]; in Return of the Jedi, Vader says it twice more in conversations with the Emperor [39:16 and 1:07:38], and Admiral Piett says it to Vader ("As you wish, my lord") [56:13]. In The Phantom Menace, Nute Gunray says, "As you wish" at the end of a conversation with Darth Sidious [5:04], and in Revenge of the Sith, Captain Typho says, "As you wish, my lady," to Padmé [1:41:23].
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The color scheme of the blue A-wings (also seen in Part I) is taken from a Ralph McQuarrie concept painting: