Give 'em Hell(1955)

Original title: Ça va barder

During the 1950s, in Portuguese Mozambique, small-time American hustler, ex-soldier, ex-boxer and adventurer Johnny Jordan is looking for a new gig. His opportunity comes in the form of a local shipping tycoon and importer Moreno who offers Johnny a job after Johnny saves Moreno from an armed mugger on the waterfront.