El imperio contraataca
Screenplay (1980)
Un largo adiós
Screenplay (1973)
Río Lobo
Screenplay (1970)
El Dorado
Screenplay (1966)
Hatari!
Screenplay (1962)
Oro de los Siete Santos
Writer (1961)
Río Bravo
Screenplay (1959)
El sueño eterno
Screenplay (1946)
