Conductor Richard Hageman, who played Carlo Santi in the film, actually knew Enrico Caruso and led several performances with him at the Metropolitan Opera, including the 1918 War Relief Benefit re-created in the film.
In October 1951, MGM was distributing this film on the drive-in theater circuit on a double bill with the Lassie movie The Painted Hills.
This was the next-to-last completed MGM film under Louis B. Mayer's supervision (the last was Show Boat, released in the summer of that year). A proxy fight soon after would see him removed as the head of the studio he helped to found. He was replaced by his former chief of production, Dore Schary. Mayer ran MGM for 27 years, Schary for barely 6.