Trivia: Both Brody Bruce and Randall Graves (from Clerks) have a cousin named Walter. In Clerks Randall tells Dante about his cousin Walter breaking his neck trying to suck his own d**k. In Mallrats Brodie starts the movie by telling you a story of how his cousin Walter kept shoving cats up his ass to get a gerbil out of there.
Trivia: Jared Svenning was not originally bald. This was a decision Michael Rooker made while trying to dye his hair gray.
Trivia: The film's events take place the day before the events of "Clerks."
Trivia: Shannen Doherty changes her outfit regularly throughout the film. Apparently this is because in her contract it said that she got to keep any clothes she wore during shooting, so she changed as often as possible.
Trivia: LaFours the security guard who wears the white straw cap is a reference to LaFours in Butch Cassidy and the Sundance Kid who also always wears a white straw cap.
Trivia: When they're in the dirt mall, check out the cap TS tries on - it's got "Clerks" on it.
Trivia: OK, this isn't a mistake, just a strange coincidence. If you have the DVD, and you listen to the commentary, at one point Kevin Smith talks about a scene that was cut from the script where Jay and Silent Bob are watching Gwen in the changing room and that they are "pleasuring themselves." He then mentions a substance landing in her hair, and how he was told to take it out because it was vulgar. He goes on to bring up how much "There's Something About Mary"'s famous scene is akin to his cut scene, and how TSAM went on to make $200 million. Now, if you pay attention to the scene where Brodie and Rene are having sex in the elevator, the song playing is "Build Me Up, Buttercup" - the same song that plays over the credits of TSAM.
Trivia: The character of Shannon Hamilton is meant to be an inside joke about Shannen Doherty. She was married very briefly to Ashley Hamilton so hence her name was (temporarily) Shannen Hamilton.
Trivia: The third contestant on the game show Truth or Date is called Gil Hicks. The guy who plays Gil Hicks is Brian O'Halloran the guy who plays Dante Hicks in Clerks.
Trivia: When Jay and Bob attack the Easter bunny, have a look towards the end of the attack. Bob begins to chew on the bunny's ear. Pretty pointless considering it's part of the costume and wouldn't hurt the guy inside it at all.
Trivia: When Brodie and TS are being arrested, Renee runs to get Jay and Silent Bob. The person they are with, Willam, calls her Brenda. Brenda is Shannen Doherty's character from "Beverly Hills, 90210."
Trivia: The movie closes with Weezer's song "Suzanne" and if you watch long enough it shows Jay and Bob walking off with an orangutan named Suzanne. The same orangutan, with the same name, later appears in "Jay and Silent Bob Strike Back."
Trivia: Willam can also be found in Clerks, though played by a different actor. Willam (Snowball) is the junkey that Veronica snowballed, he is also seen at random intervals saying funny things, and he's perpetually high or drunk (or both).
Trivia: After Jay fills one of his socks with quarters and gives it to Silent Bob, he is only wearing one sock throughout the rest of the film.