 Blood, Guts and Sunshine: The History of Horror Made in Florida2021 · Self | Self |
 Naked World2020 · Actor | Actor |
 Underwood2019 · Al | Al |
 Thumbs2019 · Writer, Director | Writer, Director |
 Cool As Hell 22017 · Dad | Dad |
 They Came from the Swamp: The Films of William Grefé2016 · Himself | Himself |
 It Was a Colossal Teenage Movie Machine: The AIP Story2015 · Himself | Himself |
 Consider Us Even2015 · Director | Director |
 Bikini Swamp Girl Massacre2014 · Uncle Bill | Uncle Bill |
 A Cask of Amontillado2013 · Himself | Himself |
| DDark Side of Eden2008 · Self | Self |
 The Psychedelic Priest2001 · Director, Director of Photography | Director, Director of Photography |
 Biohazard: The Alien Force1994 · Mr. Babb | Mr. Babb |
 Dark Universe1993 · Old Tom Hanning | Old Tom Hanning |
| JJust A Chance1992 · Director | Director |
 Cease Fire1985 · Producer | Producer |
 Bacardi and Coke Bonanza ‘811981 · Director | Director |
 Whiskey Mountain1977 · Director, Producer | Director, Producer |
 Mako: The Jaws of Death1976 · Director, Producer | Director, Producer |
 Impulse1974 · Director | Director |
 The Godmothers1973 · Director | Director |
 Stanley1972 · Director, Producer, Writer | Director, Producer, Writer |
 The Naked Zoo1970 · Director, Screenplay, Producer | Director, Screenplay, Producer |
 The Hooked Generation1968 · Writer, Director, Producer | Writer, Director, Producer |
 The Wild Rebels1967 · Writer, Director | Writer, Director |
 Death Curse of Tartu1966 · Writer, Director | Writer, Director |
 Sting of Death1966 · Director | Director |
 The Devil's Sisters1966 · Director, Screenplay | Director, Screenplay |
 Racing Fever1964 · Writer, Director, Producer | Writer, Director, Producer |
 The Checkered Flag1963 · Director, Writer | Director, Writer |
