Based on his 'C'-Man film score, composer Gail Kubik's Symphony Concertante was awarded the Pulitzer Prize for Music in 1952.
This was the first feature film to utilize magnetic audio film for both original recording and post-production rerecording, per Lenny Lipton in "The Cinema in Flux" (2021), page 339.
Italian censorship visa # 13062 delivered on 31-10-1952.
During the introductory narration, Cliff Holden (Dean Jagger) describes himself as a 35-year-old customs agent, yet Jagger was 45 (and looks it) at the time he made this film. The hairline of his toupee has noticeably receded in some scenes.