2:48 - Obi-Wan (to his clone troopers): "Who's up for a challenge? We're not getting any reinforcements until those guns are out of commission." Palpatine uses a similar expression in Revenge of the Sith (referring to Obi-Wan's battle with Grievous): "We can only hope that Master Kenobi is up to the challenge" [1:02:05], and Han uses the phrase "out of commission" twice in A New Hope: "I just hope the old man got the tractor beam out of commission" [1:31:37] and "I hope that that old man got that tractor beam out of commission, or this is gonna be a real short trip" [1:32:55].
13:28 - Boil (to Numa): "Don't cry, kid. We'll keep you safe. I- I promise." In The Phantom Menace, Obi-Wan tells Anakin, "You will be a Jedi; I promise" [2:07:43], and in Revenge of the Sith, Padmé tells Anakin, "I'm not gonna die in childbirth, Ani; I promise you," and he replies, "No, I promise you" [53:46]. Later, Anakin also tells her, "Things will be different; I promise" [1:29:13].
14:26 - Waxer (to Boil): "How're we gonna explain all this?" In A New Hope, Luke similarly wonders, "How am I ever gonna explain this?" [36:30]
13:59 - Tactical droid (referring to the Republic troops): "They are on the move." Probably just coincidentally, Obi-Wan uses this same phrase in A New Hope to describe the sand people: "They're on the move" [32:29].
17:42 - Obi-Wan (to Cody as Waxer, Boil, and Numa emerge from a hole in the ground): "Don't shoot." C-3PO also says this to Jawas in A New Hope: "Don't shoot! Don't shoot!" [16:27].
21:49 - Tactical droid: "You lose, General Kenobi." Grievous also says this to him in Revenge of the Sith [20:36].