The students seen in several scenes at UC Berkeley are actual Berkeley students; the movie was filmed while classes were in session.
Jason Biggs shot this concurrently with Loser (2000) which was being filmed at the same time in Canada. This necessitated him flying between Toronto and Los Angeles.
Freddie Prinze Jr. deliberately opted for the role of a geek as he was tired of being cast as a pretty boy.
Claire Forlani was aghast when she was told she would be appearing in a dance number. The troupe had been rehearsing the routine for two days - Forlani was given half an hour to learn the moves.
The homecoming scene was shot over Thanksgiving.