Harpo Does Something Funny: One of Kevin Smith's only films to allow extensive improvisation, as all the performers were famous for their lengthy ad-libbed scenes from Judd Apatow films.
Playing Against Type: Of a sort; Jason Mewes gained fame by playing the foul-mouthed, aggressive and abrasive Jay (of and Silent Bob fame) in The View Askewniverse. In this movie, his character is still a complete doofus, but he's a lot more pleasant, calm and good-natured.
Production Posse: Two separate production posse's here, both Kevin Smith's (Jason Mewes, Jeff Anderson, producer Scott Mosier, DP Dave Klein) and Judd Apatow's (Elizabeth Banks, Craig Robinson, Gerry Bednob).
Reality Subtext: The filming of the porno is an awful lot like the way the filming of Clerks has been described. In particular, filming in the workplace after hours and the use of a microphone taped to a hockey stick as a boom mike are both shout-outs to the filming of Clerks (although Clerks was filmed with the knowledge and permission of Smith's then-employer).