Continuity mistake: At the beginning of the scene where Anakin and Amidala are getting off the transport, they start to talk. The conversation goes on for a short time, and then the scene cuts to an angle where we can see the transport again. It is far to much away for the time they walked and talked. (00:30:55)
Continuity mistake: After Obi-Wan and Anakin enter the nightclub, they stop, and as the shot ends, Anakin head is turned to his right, and Obi-Wan is turned slightly towards Anakin. In the next shot, Anakin's head is turned to his left, and Obi-Wan and Anakin are both turned in the same direction. (00:21:20)
Continuity mistake: In the fight with Dooku and Yoda near the end, there is a far shot and Yoda is behind Dooku, but Dooku is still fighting in front of him. Also it still makes the sound of lightsabres clashing.
Continuity mistake: On Tatooine when Anakin first gets on to the swoop bike, two legs which the bike is standing (hovering) on is visible. This is even so while he is racing along tatooine landscape. These legs are no longer visible when he returns with Shmi. (01:23:10)
Continuity mistake: During the meadow picnic, some of Amidala's hair is lying over her right shoulder, but in the long wide shot, it's not. (00:46:05)
Continuity mistake: In the wedding scene, there's a close-up of C-3PO and R2-D2. If you watch the background behind them, you can see that it is the same background seen in the shots of Anakin and Padmé, only reversed. This can be seen from the tree, the flowerpots and the mountain. (02:09:50)
Continuity mistake: After the Jedi have escaped the arena and Yoda tells what will happen if Dooku escapes, Mace Windu's under tunic is overlaying to his left, but in the arena, it was overlaying to his right. Later in the scene, it is back to the way it should be. (01:53:00)
Continuity mistake: When Anakin and Padmé share their first kiss as husband and wife, in the first shot, they are standing in front of two trees and a bunch of roses. But in the rest of the wedding scene, there are no trees or roses behind the couple. (02:09:45)
Continuity mistake: In the arena, Anakin rides up to the pillar that Padmé is on top of, and when he tells her to jump, the pillar is on his right. When Padmé lands behind Anakin a few seconds later, the pillar is to their left. (01:44:35)
Continuity mistake: There are at least 12 random bodies strewn about the arena during the Jedi/droid battle that are neither Jedis or droid. A couple are actually wearing regular shirts.
Continuity mistake: When Jango Fett and Obi-wan Kenobi are fighting on Kamino, Obi-wan's lightsaber gets blasted out of his hands and it lands near the edge of the platform, but when we see it again it's nowhere near the edge of the platform.
Continuity mistake: When Anakin and Padmé walk towards the moisture farm, in the first shot, their shadows are on their right. In the next shot, their shadows are cast behind them. In the following shot, the shadows are on their right again. The shadows on the ground differ as well, their size and intensity changes between shots several times. (01:08:25)
Continuity mistake: In the wideshot where Obi-Wan is about to bring Zam Wessel outside the nightclub, the man by the bar (Anthony Daniels, who plays C-3PO) is standing with his back towards them. In the next shot, he is facing them and no longer standing by the bar. The two women he was talking to have moved as well. (00:22:55)
Continuity mistake: During the speeder chase, Obi-Wan's hair is waving wildly in the wind like it should. But not so during a shot when he tells Anakin "You know I don't like it when you do that." It is completely still, not moving at all, even though they are still driving at some 100 mph. In the shot after that, it's back to normal again.
Continuity mistake: When Obi-Wan and the two Kaminoians are admiring the clone troopers, the Prime Minister says 'Magnificent aren't they?' and it cuts to a platoon of troopers marching towards the camera. Watch the trooper at the head of the group (the one with yellow markings): the white armour on his legs keeps disappearing and reappearing.