Soldier in the Rain (1963)

Maxwell Slaughter is a kind heavyset guy who has reached the rank of master sergeant in the army Admired by handsome young Sgt Eustis Clay Slaughter forms a close bond with his peer Clay hopes to convince Slaughter to join him in a business venture outside of the service but in the meantime he introduces the older officer to the beautiful young Bobby Jo Pepperdine inadvertently creating trouble for both men