Jimmy Hollywood (1994)

Jimmy Alto (Joe Pesci) is an unemployed actor in Hollywood, Calif., who decides to allay his boredom by fighting crime. With assistance from his dim-witted buddy, William (Christian Slater), Jimmy forms a vigilante group and adopts the alias Jericho. Rather than take on criminals directly, Jimmy records them engaging in illegal activities and then gives the evidence to the cops. Inevitably, this pursuit winds up getting Jimmy and William into plenty of trouble.