The Relentless Four (1965)
| Release Date: | 1965, December 3 |
| Directors: | Primo Zeglio |
| Countries: | Spain, Italy |
| Production: | Aitor Films, Aitor Films, PEA, PEA |
| Cast: | Lorenzo Robledo, José Canalejas, Raf Baldassarre, Adam West, Cris Huerta, Roberto Camardiel, John Bartha, Giovanni Cianfriglia, Jaime Blanch, Howard Ross, Fernando Bilbao, Claudio Ruffini |