Continuity mistake: During the scene of the first meeting between Gus and Ruby, Krysten Ritter's hair moves back and forth (behind or in front of her left shoulder) between shots multiple times (most obvious example: when he offers her a drink). (00:12:45 - 00:14:35)
Continuity mistake: When Michael Keaton goes to his dressing room following the light accident, the note on the flowers changes. It first reads: "They didn't have the whatever you wanted." After he removes his headpiece, the note reads: "THEy didn't have whatever you wanted - SAM."
Continuity mistake: When Kat is asking the detective what he thinks happened to her mother, after Kat is in college and she visits home, the detective lights a cigarette. We see him move the cigarette out of view and when he brings it back there is barely 3 or 4 drags left. The camera cuts to Kat and back at the detective and there's over half of the cigarette left now.
Continuity mistake: When Ali brings a fish to Wallace at the Manitoba Exotic Animals Park, she picks up the fish with her fingers pointing down at the fish. After a quick cut, she has a fifteenth grip on the fish. (01:33:05)
Continuity mistake: Jay is mopping the floor after promising on the phone to his dad that he'll bring his non-existent fiancee to the wedding. He tries to talk one of the nurses into joining him. While doing so, he stands before her leaning on his mop with his left hand on top, which switches to the right hand between shots. (00:06:40)
Continuity mistake: When Elizabeth Banks is getting out of Amos' car, when they get back from Bible study, from Banks' angle, you can see that his hand is on the knob on the steering wheel, whereas when the camera changes to Amos' angle, he isn't touching the knob. When the camera changes back to Banks, you can see his hand back on the knob. (00:48:10)
Continuity mistake: When the woman stands to sing "Bread and Roses", there is a man in a green shirt with a mustache to her left. The camera pans to other miners. When the camera pans back to the original singer, 20 seconds later, the green shirted, mustachioed man is no longer there.
Continuity mistake: The glass that was dropped and shattered on the floor had a different pattern of fragments when Mitch [Robin Williams] knelt to clean it up. Most obvious was that the majority of shattered pieces settled toward Mitch's feet but were on the opposite side of the largest piece of glass during clean-up. There's also a "stupidity" in the way Mitch wiped up the glass - pressing down on the thin towel (apparently to entrap fragments), which is most likely to result in getting pierced. (00:01:40)
Continuity mistake: As the two assistant workers walk away from the prison building at the end of the first day, Charlotte Gainsbourg's grip on her folders switches between shots.
Continuity mistake: After David hits Hugh he gets a wound on his mouth which gets smaller the next day.
Continuity mistake: The movie opens with an American Football match; look out for the girl wearing number 6 for the red team, Molosses, who has mid-length locks of straight reddish hair coming out of the helmet, down her back. When a touchdown is scored and celebrations begin, number 6 takes her helmet off, revealing the face of the protagonist, Karidja Touré, who has long black hair in braids. (00:01:20 - 00:02:40)
Continuity mistake: The car the hybrid man pushes is in OK shape at first, then he lifts and flips it through the copper fence, and now its whole front side is gone. They might used an already wrecked "car double" for the scene when it crashes and explodes. (01:40:50)
Continuity mistake: Kevin Shepherd pulls over in front of her fiancee's dad. It's still a wide angle, but you can see distinctly both her and his left arm stretched forward; she is looking at her engagement ring, he has his hand on the steering wheel. Before the camera cuts away though, he lowers his arm; it is not acknowledged in the new shot, where both have still their left arm forward. (00:03:35)
Continuity mistake: Throughout the film, Nicole Kidman's hair changes color. In one particular dinner scene, her hair is everything from light blonde, to dark blonde, to red.
Continuity mistake: Master Lui at his first appearance in the movie kills the traitor slicing his throat with burning tongs which he points right away at the eyes of the protagonist. Sammo Hung's grip on the tongs changes between shots. (00:11:00)
Continuity mistake: In the scene where Tommy is arguing with Bob Crewe after the song "Trance", Tommy puts his arm up on the music stand while he argues. In the next shot Tommy's arms are now at his side. When the camera comes back to Tommy, his arm is on the music stand again. (00:49:50)
Continuity mistake: Juana's dad buys her a bottle of lime juice hoping she can save time that way, not having to squeeze it herself fresh. She passes the bottle back to him holding it by the middle section in one shot, and by the neck in the next. (00:06:00)
Continuity mistake: Carrie's height changes constantly.
Continuity mistake: When the guy is protecting his home and clearing the window with his shotgun you can see him breaking the glass on the bottom left window pane. In next shot it has the piece there again. (01:43:55)