
Directing
William Lustig (born February 1, 1955) is an American filmmaker and film distributor, known for his work in the horror genre. His best-known films include Maniac (1980), Vigilante (1982), and Maniac Cop (1988) and its sequels. He is also the founder of the boutique home video label Blue Underground.
Description above from the Wikipedia article William Lustig, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Masters of the Grind
as Self

In Search of Darkness: Part III
as Self
Maniac: The making of a living pulp novel
as himself
Returning to the scene of the crime
as himself

VHS Revolution
as Self
Tax Shelter Terrors
as Self

42nd Street Memories: The Rise and Fall of America's Most Notorious Street
as Self

The Outsider: The Cinema of Antonio Margheriti
as Self

Maniac: The Making of Documentary
as Self

American Grindhouse
as Himself
Vigilante
1983