Continuity mistake: When JB dreams about singing "Master Exploder" in the small bar, he points at one guy in the audience and literally blows his mind. When he starts pointing you can not only see JB's face, but also how his elbow is in a slight angle. In the next shot the camera shows the guy JB is pointing at and his elbow is completely stretched. The views change several times and the angle of his elbow changes after every cut, until the guy's brain is finally blown out.
Continuity mistake: When they have rolled all the weed together, Dante lit the bong with both of his hands on the bong, but in the next shot he is just sitting back on the couch.
Continuity mistake: When the water wheel begins to roll, with Norrington and Will atop and then snatches up Jack, its blades (buckets on the outside rim) and two sides of the axle face a specific direction as it gains speed. Now compare the following two shots, as the water wheel rolls away from the camera: When the wheel rolls, just as Jack falls out, after hitting his head on the bar. Then later on the beach, as Elizabeth watches, just as the wheel rolls and falls over in the close-up, the wheel is actually rolling in the opposite direction - just note its blades. Also note the bizarre change of its axle's wide and narrow sides. (01:52:40 - 01:56:50)
Continuity mistake: When Troy is in the locker room with his teammates, Chad is handed the framed photo of Troy's father and there's a white sticker on the back of the frame. In the next shot, when Chad gives the frame to Troy, the sticker is gone. (00:58:50)
Continuity mistake: Right after Queen Latifah hits her head and is having a fantasy, LL Cool J is unbuttoning his shirt. The scene cuts to Queen Latifah and when it cuts back his shirt is buttoned up and his tie is tied properly. It cuts back to Queen Latifah and back to LL Cool J where his shirt is now once again completely unbuttoned. (00:14:00)
Continuity mistake: When Clouseau parks in front of the ministry of justice, he breaks the hood of two police cars. A few shots later, when we see him entering the building, only one of the cars is broken.
Continuity mistake: When everybody is at the rehearsal for Grant and Julia's wedding, when Bernie does a toast to Julia and Grant, watch the level of water in Roz's glass, it changes without her even touching it.
Continuity mistake: When the killer (Jigsaw I suppose) is releasing Tom's children from being hung by their hands, right when they get down the rope holding them up disappears.
Continuity mistake: When Ashley moves in with her two friends she breaks their bathroom mirror with a hairdryer. Later on in the movie, in the scene where her two friends are giving her a pep talk about luck, we see the same bathroom mirror in the background, which is now perfectly fine. Right after that, Ashley goes into the bathroom and looks at herself in the mirror, which has suddenly gone back to being broken.
Continuity mistake: Mina Hoyt's bra strap before the vault was a white strap. After she completed the vault, the bra strap changed to hot pink. (01:19:05 - 01:20:00)
Continuity mistake: In the long crash scene at the end, the Perrier car loses the front passenger side tire in the initial flip, but in the next shot it is attached to the car again.
Continuity mistake: In the scene where Larry's partner is writing on the white board, a line appears and disappears from the restaurant name Macelli's in the middle to the restaurant name Macelli's on the right side.
Continuity mistake: In the shot after Robin Williams has been sprayed to wash off the crap from the RV he is bone dry after the spraying is complete. They only show his upper body at this point but the spraying would have been over his entire body.
Continuity mistake: During the scene when Matt Dillon and Kate Hudson are talking on the porch, her bra straps move back and forth on her shoulders.
Continuity mistake: When Zach is getting ready for his date with Amy, Zack's beard length changes from a "five o'clock shadow", to a full beard, back to a "five o'clock shadow", between three shots.
Continuity mistake: During the scene where Rita hugs Roddy for giving her the jewels,When it shows Rita's back, Roddy's hand skips from Rita's upper back to Rita's lower back. (01:00:30)
Continuity mistake: When Clark gets a text message from his mother, Gus is seen looking down wiping the dust off the pitcher mound with his foot. When it cuts to a wide shot Gus is now looking to his left at Clark.
Continuity mistake: When Madea is in the car coming back from court, Nikki smarts off at her and Madea turns around to hit on her. While this is going on, you hear brakes squealing and the driver is moving the wheel like the car is out of control. Yet, the background never changes, stays level throughout this scene.
Continuity mistake: When the T-Rex is going after Larry, Larry is behind a desk. The T-Rex bangs his head on the desk and then lifts the desk and throws the desk. A few scenes later the desk is back in place and there is no mess from the papers that were there before. (00:22:50 - 00:23:40)
Suggested correction: The desk is at the opposite end of the hall, the desks in shot were never touched by T-Rex.
But roughly at 40m the desk stands well again. Maybe end of the night magic - but the desk is in place without being touched by anyone.
Continuity mistake: In the cafeteria scene, when Britney sits down and the other girls move away, there is rubbish on the table and a can of Pepsi, but after looking at her phone message she stands up and the table is completely clear of the rubbish.