In 1952, when this movie was made, Trieste was an independent city state, under the protection of the United Nations as the Free Territory of Trieste. The territory of Trieste was divided into two zones of occupation. Zone A was administered by the Allied Military Government (American and British Armed Forces) while zone B remained under the military administration of the Yugoslav People's Army. This state of affairs ended in 1954.
In 1952, when this film was released, Austria was under joint Allied occupation (American, British, French and Soviet areas). Vienna, much like Berlin, was also divided among four zones of occupation. In 1955, as a result of the newly signed Austrian State Treaty, most of the Allied occupation armies, including the Soviet Army, withdrew from Austria.
Second teaming of Charles Bronson/Buchinski and Lee Marvin. A year before, they both made their film debuts in You're in the Navy Now (1951). They both had uncredited bit parts, just like in this film.
This film features three Academy Award winners: Patricia Neal (Best Actress), Karl Malden (Best Supporting Actor) and Lee Marvin (Best Actor).
This movie was telecast for the first time on April 14, 1962, as the final show of the first year of the series "NBC Saturday Night at the Movies", the first network program that broadcast first-run movie productions.