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 videotapes that Matt keeps in his wardrobe there are these titles: Midnight Tease (1994), Emmanuelle: First Contact (1994) (TV), 'Penthouse: Dear Diary', Penthouse: Pet of the Year & Friends (1999) (V), 'Penthouse: The Ultimate Pet Games', 'Banging Wood', 'In Diana Jones and the Temple of Poon' and 'Wet Slappin''.
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.