Xzibit, no stranger to the filming studio thanks to MTV, has joined the cast of the upcoming X-Files movie.  Amanda Peet and Billy Connolly are already signed on for supporting roles in the flick.

One source says the rapper and the movie star (Xzibit and Peet) will play FBI agents working with Scully and Mulder, the stars of the show and the film. The plot is being kept very hush-hush, and FOX is releasing very little information on which roles the actors will play. Xzibit has played roles in films before and was set to appear in the Oliver Stone film, Pinkville. The Pinkville project, however, has been scrapped because of the ongoing and seemingly unending writer’s strike.