12:13 - Obi-Wan (to Steela): "Be mindful of your frustration. It will only hold you back." In Attack of the Clones, he uses the same expression: "Be mindful of your thoughts, Anakin; they betray you" [12:29].
14:55 - Anakin (after Steela shoots a target): "Impressive. Most impressive." Vader gives the same compliment to Luke in The Empire Strikes Back [1:44:30].
16:21 - Obi-Wan (to Anakin, about the rebels): "We can only protect them; we cannot fight this war for them." This echoes what Qui-Gon says to Queen Amidala in The Phantom Menace: "And I can only protect you; I can't fight a war for you" [1:37:45].
16:29 - Obi-Wan (about the droids): "There are too many." Captain Panaka says something similar in The Phantom Menace (referring to battle droids): "There are too many of them" [23:25], as does a Jedi youngling in Revenge of the Sith (referring to the clones executing Order 66 at the Jedi temple): "Master Skywalker, there are too many of them" [1:23:40], and a rebel pilot says basically the same thing in Return of the Jedi (referring to TIE fighters): "There's too many of them" [1:35:13].
17:10 - Obi-Wan (to Steela, referring to a droid tank): "We'll handle this." Qui-Gon (referring to himself and Obi-Wan) also says this when Darth Maul appears in The Phantom Menace [1:50:29], although Obi-Wan also says something similar in Attack of the Clones (about fighting Count Dooku): "Anakin and I can handle this" [2:03:07].
19:41 - Battle droid (to the rebel convoy): "Halt!" In The Phantom Menace, a battle droid also says this to Qui-Gon as he leads a group of Naboo to a ship [24:25].
21:11 - Lux Bontari: "Good luck." It's ambiguous whether he directs this to Steela or Ahsoka, but in The Empire Strikes Back, an unidentified Rebel pilot wishes Luke good luck [36:02] and Luke wishes Lando good luck [2:00:09], and in Return of the Jedi, Han and Lando wish each other good luck [Han to Lando at 50:33 and Lando to Han at 52:21].