Continuity mistake: When the game officially begins, the players can be seeing moving to their vehicles. When Adam and Laura go to leave, they see Flynch still standing there. They grab him and drag him off. Then we have a scene of the white team leaving, then the green team, then the red team, at which time in the background you can see Adam, Laura and Flynch still standing there like they were before they even started to leave. (00:21:40)Benjamin Tiffany
Continuity mistake: When Harold is at the drive-in diner, he grabs his fries with his left hand and then pushes the window tray off of his car with his right hand. In the next shot the fries are in his right hand, there was not enough time for him to switch hands between shots.
Continuity mistake: When Lucille is begging Harold to go back for "Little Harold" and he refuses, she then takes hold of the wheel while he's driving and turns it to the right. However, the next shot shows the van turning around left.
Continuity mistake: Mrs. Grimhouse, the landlady, was brought into the hotel with her hands cuffed in front of her but in the hotel room her hands are behind her back.
Continuity mistake: When the Yellow team enters the elevator to head for the 27th floor, the buttons inside are shiny and stick out and there is a red button at the top. There also only appears to be two rows of buttons. However, later when Marvin examines the panel in the elevator when they are trapped, there are 4 rows of buttons, which don't stick out, and the red button isn't there. Also, despite the power outage, the button for the 27th floor is brighter than the other buttons. (01:43:30 - 01:44:45)Benjamin Tiffany
Continuity mistake: The football players invade and trash the Sorority party at night. This scene is followed by day scenes of all the other groups making decisions to enter the game. Then the next scene is night again at the Sorority party, where the place is still trashed and the girls are in their night clothes. Either they didn't clean up the mess for over a day, or the editing here is off. (00:09:00 - 00:16:45)Benjamin Tiffany
Continuity mistake: Harold's footwear changes several times during the movie. He switches between brown slippers and blue flip-flops at almost every location, most noticeably between Johnny's Fat Boy (flip-flops) and retrieving the doll afterward (slippers).