Continuity mistake: In the tunnel at Geonosis, Anakin and Padmé stop. In the next shot, Anakin's right hand is out of shot and not moving. He then ignites his lighsabre, as if it were in his hand the whole time. But in the previous shots, his hands were empty. (01:33:40)
Continuity mistake: When Obi-Wan and Count Dooku are duelling, the background behind them is inconsistent between shots. They are closer to the walls in the close-ups than in the wide shots, and sometimes the background itself changes between shots. For example, when Dooku says, "Master Kenobi, you disappoint me", there's a wall behind him, but in the previous shot, the opening of the hangar could be seen behind him. (02:00:25)
Continuity mistake: When Anakin and Padmé embrace outside the moisture farm, there's a dark, round spot in the sand next to them, that wasn't there in the previous shot of Anakin. Anakin can't have been standing on it in the previous shot, because he is standing about one metre away from the position of the spot in both shots (watch his shadow, it is in the same position in both shots). (01:11:00)
Continuity mistake: When Padmé and the Jedi are surrounded by battle droids in the arena, certain people change position or are crouching/standing in a different position between shots.
Continuity mistake: Anakin's handcuffs keep coming off and then they're back on again; just look at his wrists when he gets on the bull and the shots when he's riding him, they go on and off a few times
Continuity mistake: When Anakin and Obi-Wan are talking while Padmé is sleeping, as Anakin says, "It was her idea," his body is turned in a different direction from the previous shot. In the following shot, he is standing in the same position as the first shot, and Obi-Wan has turned in a different direction as well. (00:10:55)
Continuity mistake: In the first shot of the morning scene at the lake retreat (after Anakin's nightmare about his mother), on the extreme left of the screen, you can see the shadow of Padmé being cast on the open door to the balcony. In the next shot, her shadow is cast on the door again as she walks out the door. (00:56:55)
Continuity mistake: When Anakin is holding his dead mother in his arms in the Tusken camp, he holds her closer to his shoulder in the close-ups than in the wide shots. (01:16:45)
Continuity mistake: When Yoda and Mace listen to the Senate voting Palpatine emergency powers, Yoda starts on the top ledge nearest the Senate chamber. When the shot changes he has moved down onto a different ledge which wasn't there before. (01:29:45)
Continuity mistake: When Jango Fett shoots the Jedi that jumped up onto the platform off you see he has only one Westar 34 Pistol. But when he flies into the stadium to kill Mace Windu he has both pistols and then only one again.
Continuity mistake: In the close-up of Mace Windu after he beheads Jango Fett, his under tunic is reversed. It is overlaying to his left instead of his right. (01:48:45)
Continuity mistake: Before the lightsaber duel begins, Anakin says, "You're gonna pay for all the Jedi that you killed today, Dooku", and Obi-Wan's lightsaber is pointing downwards at the end of the shot. But in the next shot, it's pointing upwards. Anakin is holding his lightsaber closer to his leg as well. (01:59:55)