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: In the beginning of the movie, right after the boxing match on the Xbox, Alex goes into his kitchen to grab a drink. You can see Kevin Nash and another guy in the background. The other guy picks up a coffee maker and places it into a packing box. In the next shot, Alex asks the two guys what's going on, and in the shot after that, you can see the guy grabbing the same coffee maker from behind the box, and placing it into the box again.
Continuity mistake: When Alex comes to work after he finishes levels 10-15, his friend (Hill) sniffs the folder twice.
Continuity mistake: When people are entering Grandma's house from the Angry Beaver the DJ can be seen walking up the sidewalk, then when it cuts to Dante he's walking up through the lawn.
