Amigos bajo el sol

I was about 11 years old when my parents took me to the Fox Theater in Inglewood, California to see this film. It just so happened that Dean Stockwell was appearing in person before the film and was answering questions from the audience. He was very shy and an adult male did most of the answering. I remember loving this film - perhaps because the star was present - as a western adventure involving a big locomotive. I remember the relationship between the father, looking for the boy, and the son as being more realistic than I had seen in films. By this age I was a veteran film-goer, seeing my first film, a Walt Disney film, at age of six. I gotta get a copy of this film to re-live it.