This movie was not shot in widescreen. It was converted to CinemaScope in the final print after having been shot in standard Academy ratio, much like some movies, which are "matted" after having been shot in Academy ratio. The process used was contemporary of SuperScope and a forerunner of Super 35. It was filmed using spherical lenses at an aspect ratio of 1.37:1. In the printing process, the images were cropped to a height of two perforations, giving them an aspect ratio of 2.36:1. The images were then stretched vertically to a height of four perforations, at which point they conformed to the standard CinemaScope-2 format.
The production could not secure filming permits in France, due to the movie's unflattering portrayal of the French Army.
Based on the same historical events as depicted in The Dreyfus Case (1930), The Dreyfus Case (1931), The Life of Emile Zola (1937), Prisoner of Honor (1991) and An Officer and a Spy (2019).
The film failed at the box office, resulting in a loss to MGM of $1,415,000 according to studio records.
Completed in mid 1957 and released in the US in March 1958.