They Came from the Swamp: The Films of William Grefé
- Bliain: 2016
- Tír: United States of America
- Seánra: Documentary
- Stiúideo:
- Eochairfhocal:
- Stiúrthóir: Daniel Griffith
- Caitheadh: William Grefé, Steve Alaimo, John Davis Chandler, Gary Crutcher, Frank Henenlotter, David F. Friedman