Bartel also directed 11 low-budget films, many of which he also acted in or wrote. His started in 1968 with the short The Secret Cinema, a paranoid delusional fantasy of self-referential cinema. He graduated to features in 1972 with the horror-comedy Private Parts. He would go on to direct such cult films as Death Race 2000 (1975), Eating Raoul (1982), Lust in the Dust (1985) and Scenes from the Class Struggle in Beverly Hills (1989).
Bartel appeared in over 90 movies and TV episodes, including such titles as Eat My Dust (1976), Hollywood Boulevard, Rock 'n' Roll High School (1979), Get Crazy (1983) and Amazon Women on the Moon (1987). He frequently co-starred with friend and former Warhol girl Mary Woronov; the pair appeared in 17 films together, often as husband-and-wife.
In 1979, he was a member of the jury at the 29th Berlin International Film Festival.
Bartel died May 13, 2000 of a heart attack two weeks after liver cancer surgery; he was 61 years old. His final screen appearance was a posthumous role as "Dad" alongside Mary Woronov ("Mom") in the 2001 independent film Perfect Fit.
The Belgian horror movie Calvaire paid a tribute to the late Bartel – the mad innkeeper character is named "Paul Bartel".
