Filmed in 1962, but not shown in cinemas until 1964.
The French expression 'la petite mort' (the little death) actually refers to orgasm, not love.
Yul Brynner is identified in the credits as an Air Force Technical Sergeant (E-6), but has six stripes, which would be a Master Sergeant (E-7)
Based on the book of the same title by Elliott Arnold, which is in turn a blend of two stories from the book Rescue! by Elliott Arnold.
2nd Lt. John Gregg is based on the real life Major Bill Sayers (Captain at the time of the incident this movie is partially based on).