Wonderful beginning and then...

Small spoilers ahead:

The movie beginning - it's musical score and train heist scenes - is terrific, but then it just gets too easy-going. So, as the movie progresses, the disappointment gets bigger and bigger.

Main characters lead by pretty Shasta are welcomed in Rio Lobo by beautiful Maria. A little bit later Cordona runs randomly in one of the houses while hiding from the guards and what do you know - in there awaits gorgeous Amelita - almost completely nude! Either he's very lucky or it's El Dorado, not Rio Lobo.