Ashton Kutcher and Katie Holmes were originally set to play the roles of Matt and Erica. They both dropped out due to scheduling conflicts.
Among the adult VHS tapes that Matt keeps in his wardrobe are these titles: Midnight Tease (1994), Emmanuelle: First Contact (1994), Midnight Tease (1994)', Penthouse: Dear Diary (2000), 'Ultimate Pet Games (1996)', 'Emmanuelle: First Contact (1994) (Softcore)', 'Midnight Tease (1994)' (Softcore) and Penthouse: Pet of the Year & Friends (1999) are real. The tapes 'Banging Wood', 'In Diana Jones and the Temple of Poon' and 'Wet Slappin'' are fake.
When Matt and Erica first meet at the laundromat, Erica is wearing a t-shirt that says "Türkiye" (Turkey) and has the map of Turkey on it. She's clearly wearing a t-shirt bought as a souvenir to give the idea that she has nothing else left to wear.
The numerous film logos in the opening takes up 1 minute and 5 seconds of the movie's 96 minute runtime.