Corrected entry: During the conversation with supreme chancellor Palpatine at the very begining of the film, he states that he will not let this Republic which has stood for a thousand YEARS be split in two. This is an error as the Republic has stood for a thousand GENERATIONS (as stated by Obi-wan in episode 4).
Corrected entry: In the scene when Obi-Wan is being held in captivity on Geonosis and is speaking with Dooku, watch Dooku as he circles Obi-Wan while he talks. At one point after a shot of Obi-Wan, a shot of Dooku has his hands clasped across his midsection, but also notice he is amazingly holding the sides of his cloak. Four hands Dooku? You are on the dark side aren't you?
Corrected entry: On Tatooine, Amidala presses a button to retransmit the message from Obi-wan. A moment later, she presses the same button to bring up the map showing Obi-wan's location and the distances between Tatooine and Couruscant. Not only does this same button do double duty, but with one press it knows she wants to show the location of the three planets.
Corrected entry: All clones should look like Jango. However, in one shot during Kenobi's visit in the clone-factory they look like Padmé's guard captain.
Corrected entry: When Anakin visits Cliegg Lars on Tatooine, it has only been 10 years since he left his mother. Ten years is not long enought for her to have been sold by Watto, marry Lars and have a fully grown child.
Corrected entry: Toward the end of the movie, there are plans for a weapon that the "republic must not know we are building". It looks like the Death Star from Episode 4. However, according to many sources, the Death Star was made under the rule of the Empire. Palpatine personally oversaw its design, which was made by the same man that later designed 2 other super-weapons. How can it be that such a weapon is thought about when the person that designed the planet destroying super-laser, and the housing for it (The Death-Star itself) isn't even a teenager yet?
Corrected entry: When Boba Fett picks up his dad's helmet (presumably with head still inside) it is remarkably lightweight.
Corrected entry: Amidala is slashed across the back in the arena by one of the creatures. Later, when she falls out of the ship and onto the sand, the slashes have disappeared.
Corrected entry: In the final battle, Mace Windu has climbed aboard Yoda's open ship and turns around to deflect the blaster shots with his lightsaber. However, one of the shots slips through and would have hit him right in the chest. About 10 centimeters from his body, the red shot mysteriously vanishes... Obviously an interaction between live character and CGI that went wrong. (01:57:10)