Visible crew/equipment: You can see a rope visible when Charlie is hanging from the hotel roof.
Continuity mistake: In the prosecuting attorney's speech in the first courtroom scene, the judge's house of cards is no more than 2 levels high (a base level with a peak) [0:2:20]. In the close-up shot of the judge, the house of cards changes to 3 levels high (2 base levels and a peak)[0:2:35]. When the scene focuses back on the prosecuting attorney, the house is back to two levels of height[0:2:39]. (00:02:20)
Other mistake: In the second wedding scene, as Don Pedro and Claudio are walking up the aisle you can see an extra jumping over the benches on the left-hand side of the screen. He clears the first one, but trips on the second and falls flat on his face.
Factual error: When the convictions are overturned, the defendants' solicitor, Gareth Pearce (played by Emma Thompson) is shown arguing their case in court. In England solicitors cannot appear in the higher courts, and in fact a barrister presented the case. However, the film is 'dramatically correct' because it was Gareth Pearce who got them freed, and the barrister in question is far too full of herself without having the honour of being portrayed by Emma T.
Continuity mistake: In the scene where Gard telepathically fights an alien, you see his nose bleeding. Then the alien explodes, and in the next shot of Gard's face, the blood under his nose has vanished, only to return in the next shot of his face.
Plot hole: There is a guard stationed in the time lock vault without oxygen. Also, if the vault was supposed to be that secure, why were there simple bars protecting the back entrance?
Continuity mistake: During the final fight between Jean-Claude and the bad guy, they are both holding onto a shotgun. Initially the barrel of the gun is in J-C's left hand. But without either of them letting go of the gun, suddenly the gun switches end-for-end and the stock of the gun is in J-C's left hand. It looks like they probably re-filmed the last of the fight so the bad guy could use his right hand to hit J-C with the butt-end of the gun.