From Here to Eternity (1980)

In 1942, Honolulu is under martial law following the attack by the Japanese, but the personnel of G Company, 24th Infantry Division seem to be more interested in their personal lives than in fighting the war. Sgt. Warden is carrying on an affair with Karen Holmes, wife of his CO Maj. Holmes. Jeff Pruitt becomes involved with his late brother's girlfriend, prostitute Lorene.