| Guión Original [Screenplay/Story and Screenplay/Written Directly for the Screen] |
| 1939 Ninotchka |
| 1950 El crepúsculo de los dioses (Sunset Boulevard) |
| 1951 El gran carnaval (The Big Carnival) |
| 1960 El apartamento (The Apartment) |
| 1966 En bandeja de plata (The Fortune Cookie) |
| Guión Adaptado [Based On Material Produced Or Published/Screenplay] |
| 1941 Si no amaneciera (Hold Back the Dawn) |
| 1944 Perdición (Double Indemnity) |
| 1945 Días sin huella (The Lost Weekend) |
| 1959 Con faldas y a lo loco (Some Like It Hot) |
| Argumento [Original Story] |
| 1941 Bola de fuego (Ball Of Fire) |