Ralph Zipper — Filmography
Producer. Popular movies: Undefeated (2011), The Nightmare (2015)
Filmography
Producer (2)
By years
| documentary: 2 (50%) | |
| sport: 1 (25%) | |
| horror: 1 (25%) |
Popular films and TV series
| documentary: 2 (50%) | |
| sport: 1 (25%) | |
| horror: 1 (25%) |
