Other mistake: During the Dance Dance Revolution challenge, the challenger should have won. Jeff does some outlandish freaky dance moves, which in no way correlate to the arrows that are on the arcade screen. The arrows that he hits, aren't even the same ones that register as being hit up on the screen.
Grandma's Boy (2006)
1 other mistake
Directed by: Nicholaus Goossen
Starring: Linda Cardellini, Shirley Jones, Doris Roberts, Allen Covert, Peter Dante
Genres: Comedy
Plot hole: Contrary to the realism of developing a video game Alex should have had external files such as character models, stage maps and coding on his laptop which he could have used as evidence that JP stole his game, It would be impossible to keep all of the games files on one disc especially if he wanted to change something in the game because if you want to modify a DVD-RW you have to erase the disc data and reburn it.
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