The Five Man Army (1969) on Netflix

Plot summary

A mercenary called the Dutchman is hired by Mexican revolutionaries to rob a train of $500,000 in gold. He brings in four men to help and promises each of them a thousand dollars. Mesito is a strongman wanted for cattle rustling, Luis an acrobat who turned outlaw, Augustus an explosives specialist from the Dutchman's old army unit, and Samurai a performer in a sideshow. The train's defenders have machine guns and a cannon. To take the gold, the Dutchman plans to board the train while it is moving and uncouple the car that carries it. Their first job is to get the rebel leader out of the hands of the Army before he is executed.