The Leather Saint is a 1956 film, directed by Alvin Ganzer in blackandwhite VistaVision, about a priest who boxes. It stars John Derek, Paul Douglas and Jody Lawrance.
Gil discovers that the church is desperate to raise funds for two things, a swimming pool for children and an iron lung for a hospital. Without disclosing his profession, Gil agrees to let Gus handle him, and Gils first opponent is knocked out with a single punch. The impressed promoter Tony Lorenzo arranges another fight for the kid. Lorenzos girlfriend, Pearl Gorman, a singer with a drinking habit, is immediately attracted to Gil, but when he doesnt reciprocate, she continues to hit the bottle.His superior at the church, Father Ritchie, mentions to Gil that someone mysteriously has donated the first down payment for the iron lung. Gil fibs to the priest that the donor is a wellmeaning individual in the leather business. ........
Source: Wikipedia