They Came from the Swamp: The Films of William Grefé
- Jier: 2016
- Lân: United States of America
- Sjenre: Documentary
- Studio:
- Keyword:
- Direkteur: Daniel Griffith
- Cast: William Grefé, Steve Alaimo, John Davis Chandler, Gary Crutcher, Frank Henenlotter, David F. Friedman