- Eli Wallach accepted the role of Angelo Maggio, but then turned it down because he had agreed to appear in Kazan's Broadway production of "Camino Real" and had a scheduling problem.
- Joan Crawford refused a role because she abhorred the costumes.
- Studio executive Harry Cohn (I) wanted Aldo Ray to play Prewitt and Joan Crawford for the Karen Holmes role. Director Fred Zinnemann had his own ideas.
- The scene in which Prew meets Maggio and Lorene in the bar after he walks off guard duty, was actually Frank Sinatra's screen test for the part of Maggio. To impress director Fred Zinneman, he did an ad-lib using olives as dice and pretending to shoot craps. The entrire sequence was kept as is and used in the picture.
- A false rumor has actor George Reeves's part as Sgt. Maylon Stark being drastically edited out after preview audiences recognized him as TV's Superman. According to director Fred Zinneman, screenwriter 'Taradash, Daniel' , and assistant director Earl Bellamy, this story is false. Every scene written for Reeves's character was filmed, and each of those scenes is still present in its entirety in the film as released.
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