Editing Goof: When it first shows Jemaine and Bret performing as Simon and Garfunkel, Jemaine's hands are behind his back and in the next shot he has one hand in front of his chest.
Goof - During the scene where the real Art Garfunkel shows up, Karen's head is visible in a close up of Jermaine before she actually shows up in the scene.
Bret: (On Jemaine dressing up as Garfunkel to sleep with Karen) How long can you keep this up?
Jemaine: I don't know, a couple of years.
Murray: There's scheduled meetings and then there's chance meetings. What I've done is scheduled a chance meeting.