Filming the final scenes of the party meant a chaotic destruction of the house. Directors Deborah Kaplan and Harry Elfont gave the go-ahead to completely trash the place. This involved the cast and crew pulling out drawers, dropping food all over the floor, messing up the carpets, and someone spray painting "This Party Sucked" on the front door. This all happened in one hour.
A character makes reference to Velma from Scooby Doo being under appreciated and hot. The other character who agrees is played by 'Jason Segal'. Jason Segal was dating Linda Cardellini at the time who would go on to play Velma in _Scooby Doo (2002)_ and Scooby-Doo 2: Monsters Unleashed (2004).
The yearbook that Melissa Joan Hart uses in the movie is from a Philadelphia-area high school named Plymouth-Whitemarsh. The students' pages shown in the movie are really the teachers' pages in the actual yearbook.
The Klepto Kid, played by Chris Owen, appears in multiple scenes stealing something: - Some random items from the convenience store when Kenny Fisher makes his introduction. - A small statue that belongs to Molly (the girl hosting the party). - A Loveburger T-shirt when the band is fighting amongst themselves. - A police car when the party is being broken up. - And finally, a gumball machine at the restaurant the morning after the party.
Two characters that had their parts cut can be seen in at least two scenes that survived the cutting room floor. Crying Drunk Girl (Jennifer Elise Cox can be seen falling over in the crowd with the foreign exchange student and crowd surfing during the "Paradise City" scene, and Stoned Girl ('Amber Benson') can be seen staring at a banana in the kitchen early on in the movie.
The scrolling credentials listed in William Lichter's profile include: Valedictorian, National Merit Scholar, Captain - State Physics Bowl Team, Captain - State Math Olympics Team, State Math Champion, State Spelling Bee Champion, National Human Spirit Award, State Science Fair First Prize, Honor Roll Recipient, Perpetual Motion Award (Space Camp), Soap Box Derby Champion, Eagle Scout, Rotary Club, French Club, Spanish Club, Mandarin Chinese Club, German Club, Dead Romance Languages Club, Large Wooden Club, Math Club, Spelling Bee Club, Debate Team, Computer Club, Brighter Minds Society, Inventors Club, Anti-Athletic Club, Klingon Language Club, Kite Club, WWW.COM Club, Bill Gates Society, Classical Music Club, Stone Cutters, Dungeons and Dragons Club (Founder), Magic The Gathering Club (Founder), Secret Society, Junior Harvard Club (Founder), Megabyte Club, Physics Club, Latin Club, Math Olympics, Academic Decathlon, and Chess Club. The list repeats several times.
Ethan Embry's character, Preston Meyers, confesses to be a big fan of Kurt Vonnegut Jr. at the end of the movie. His yearbook quote, "Beware of all enterprises that require new clothes" by Thoreau, is also featured in Vonnegut's book "Welcome to the Monkey House."
There were characters in the movie called the Crying Drunk Girl (Jennifer Elise Cox) - who has subtitles for everything she says because she is so drunk that none of her speech is understandable - and the Stoned Girl ('Amber Benson') - who is so spaced out on dope that she wanders in and out of a number of scenes - but both were cut in order to secure a PG-13 rating.
Adam Hann-Byrd was originally cast as William, but after a couple of days of filming was let go and replaced with Charlie Korsmo. One shot of him is left in the film, but he is carrying a ladder and his face is not visible.