Louis L'Amour's memoir, "Education of a Wandering Man", said that this movie was actually based on his war time anecdotes. He won two Bronze Stars as an officer on the Red Ball Express.
James Edwards was originally cast in the role of Robertson, but was fired during production when he refused to testify before HUAC. He was replaced by Sidney Poitier.
1944 $280 = 2018 $3,961.22.