Grandma's Boy

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.

Plot hole: Early on in the movie after Alex met Samantha while he was sleeping, the next scene he's drawing a full picture of concept art for his game Demonic, which could have been proof that he made the game. (00:12:30)

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.

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Newscaster: Pamela Mills here in Van Nuys where a rare breed of African lion was captured in a residential neighborhood. Sir, what was going through your head when you saw the lion.
Dante: This shit is fucking crazy. I don't know how lion got into the neighborhood. I heard some growlin' and shit. So my roommate and I, we go to check this shit out. I look up in the tree, and there's the fucking king of the jungle! It was staring right at me. I almost shit my fucking pants. So I ran inside and called the 5-0.

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Trivia: In the scene where Alex is playing the frog game with Timmy, Alex's winning score lands exactly on 420, which is a popular pot head number. (00:17:35)

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