After the mysterious disappearance of an oil well owner, one of his workers, Gerardo assumes the business management. Soon, the owner's sister arrives from Argentina, and, believing that Gerardo killed her brother to keep the wells for himself, she starts working as a singer under a false name in the same casino her brother disappeared, in order to find out what exactly happened.
Unfortunately the movie Gran Casino is not yet available on HBO Max.
| Directing | Luis Buñuel | Director |
| Writing | Mauricio Magdaleno | Adaptation |
| Writing | Michael Weber | Original Story |
| Sound | José de Pérez | Sound Re-Recording Mixer |
| Camera | Jack Draper | Director of Photography |
| Art | Raúl Serrano | Set Decoration |
| Sound | Manuel Esperón | Original Music Composer |
| Directing | Moises M. Delgado | Assistant Director |
| Sound | Javier Mateos | Sound Recordist |
| Art | Javier Torres Torija | Production Design |
| Directing | Pedro López | Script Supervisor |
| Editing | Gloria Schoemann | Editor |
| Production | Óscar Dancigers | Producer |
| Costume & Make-Up | María de Jesús Lepe | Hairstylist |
| Camera | Carlos Martel | Camera Operator |
| Costume & Make-Up | Armando Meyer | Makeup Artist |
| Production | Federico Amérigo | Production Manager |
