One of the great injustices of Hollywood history is the fact that Deborah Kerr was nominated for Best Actress while Robert Mitchum got nary a mention for Best Actor in Heaven Knows, Mr. Allison. Kerr had several nominations, but never came up a winner. Mitchum was nominated once at the beginning of his career in the Best Supporting Actor category in The Story of GI Joe and then never again.
In Mitchum's case I think that some of his irreverent comments offended a few people. Sometimes Bob was a bit too candid about what he thought of the film industry and his chosen profession. Otherwise he might well have gotten nominations for this, Night of the Hunter, Cape Fear, Ryan's Daughter, The Sundowners, The Friends of Eddie Coyle and a few others.
This film is always and rightly compared to The African Queen with a female in the religious missionary profession and a hell-raising outsider thrown together in war time. The African Queen was in World War I and this film is set on a backwater Pacific island in World War II.
Corporal Allison, USMC arrives on a rubber raft after the Japanese opened fire on a submarine he was on. The only other person on the island is a nun who has seen all the others die or flee the island. It's a small island, but apparently strategically located.
The film is about these two mismatched people thrown together and what they have to do to survive. Deborah Kerr is a nun who hasn't yet taken her final vows and being alone on the island with Mitchum is a temptation no doubt.
Mitchum though has his own code. He's a foundling kid who took the name of Allison because that was the street in Milwaukee he was dropped off on. He was a juvenile delinquent until he joined the Marines and they gave his life a meaning. The Marine Corps manual is his Bible as much as the Scripture is Kerr's.
I can identify with that because in fact I had a cousin who was in the Marines who did in fact straighten him out. He was a hell raising kid in his youth and he became if not a solid citizen after his service, at least a respectable one.
John Huston got unforgettable performances out of his credited cast of two. Heaven Knows, Mr. Allison has not dated one single bit since its release.
We all need something to believe in to get us through in this world.