Heaven Knows, Mr. Allison - 1957

Back in 1944, in South Pacific, the Cast Away Marine Corporal Allison Awakens in a raft into the Tuasiva Island, where he Matches Sister Angela. She tells him that while trying the priest, the runaway ship to Fiji Island could be the person in the island and left behind her. Stranded at the island, but with fruits, fish and water, their paradisiacal life ends as soon as the Japanese appear to construct a base, forcing Allison and the nun to hide in a cave. The marine falls in love for the nun and provides the supply because of their survival.