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The working title of this film was Visa. The onscreen credits for technical assistance read: "The Technical Advice and Assistance of Raymond F. Farrell, Assistant Commissioner, and Cecil W. Fullilove, Investigator, and the U.S. Immigration and Naturalization Service are gratefully acknowledged." Early January 1950 Hollywood Reporter production charts list James Whitmore in the cast, but he did not appear in the released film. A December 1949 Daily Variety news item notes that Peter Coe was to appear in a featured role, his participation in the released film has not been confirmed. Although a January 26, 1950 Daily Variety news item notes that locations were to be shot in Havana, Cuba, this has not been confirmed. This film marked the feature film debut of actor Steven Hill.