In February 1964 , two days before filming began in Durango , Mexico , Columbia underwent a corporate shake-up and the film 's budget was slashed from $ 4.5 to $ 3 million .
Durango
Mexico
/location/administrative_division/country
Mexico
Durango
/location/location/contains
Mexico
Durango
/location/country/administrative_divisions
LOCATION
Durango
LOCATION
Mexico
ORGANIZATION
Columbia