Other mistake: In the scene where Vir gets in a fight with Zack you can for a moment see the Rolex that Stephen Furst is wearing on his right arm. (01:21:10 - 01:21:20)
Other mistake: Before the job, in the car, Don Cheadle, in the back seat, hands out a hacksaw, a ratchet and a pump-action shotgun, which he pumps before handing it over. The man taking the shotgun immediately pumps it again, which means it's been pumped twice, and a cartridge should have been ejected, but it wasn't. Or the gun's empty, in which case there was no point pumping it once, let alone twice.
Other mistake: Towards the end of the film, when the girls have locked themselves in the school, and Odette addresses the girls about voting what they feel, Tinka and Tweety hand out the ballots. When Odette says "You think times have changed, and we go our own way...", we see the camera focus on a group of girls. Now if you look closely at the middle row, at the girl on the right, you won't be wrong if you think that that's Kirsten Dunst. What's wrong with her being in the picture? Well, by this time in the movie, Kirsten Dunst has been expelled from the school and shouldn't be in that frame. We know this, and it is confirmed that she wasn't still at school by her appearance at the end of the film, when she arrives with Frosty in his car and says "We drove down as soon as we heard the news on the radio!" (01:27:00)
Other mistake: When Natalie is standing outside of the hockey van near the driver's side passenger door, the side of the van below the window should be about to her shoulders but is only to her waist. The side is about one foot below the loop on the back of the driver's seat, but lines up with the loop after Natalie is seated in the van. (01:15:32 - 01:17:09)
Other mistake: When Cain's eye is damaged in the fight the officer says he will only be good for cannon fodder, with no depth perception. So how can he be driving an armoured vehicle?
Suggested correction: He has been given a replacement eye, which takes care of the problem. He's just angry because Caine 607 didn't win perfectly and showed weakness by being out thought.
Other mistake: Freeze's hideout is in an abandoned oil rig, with its tanks full to the brim of oil. You'd think the company owning it would have drained the millions of dollars' worth of content first, before 'abandoning' it.