The Wackiest Ship in the Army (1961)
During WW II, Lt. Rip Crandall (Lemmon) commands the USS Echo, a run-down ship with the archetypal inexperienced, motley crew, assigned to deliver an Australian observer to a Japanese-held island. Jack Lemmon is in dazzling comedic form as he captains this rickety Navy vessel and ironically, they become a major factor in the winning of a strategic WWII battle.
Credit to : Classic TV Rewind