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The opening and closing cast credits vary slightly in order. The following written prologue appears in the onscreen credits: "Metro-Goldwyn-Mayer, A Claridge Film Production starring Van Johnson, Martine Carol, Herbert Lom: Action of the Tiger." The film closes with the following quotation: "'In peace there's nothing so becomes a man as modest stillness and humility: But when the blast of war blows in our ears, then imitate the action of the tiger . . . ' William Shakespeare's Henry V."
As portrayed in the film, Albania was under Communist control beginning in the 1940s, while Greece, its southern neighbor, remained allied with Great Britain and the United States. By 1948, after leading resistance against invading Italian and German forces in the early 1940s, Albanian Communists had consolidated power and allied themselves with the Soviet Union. The southern-most region of Albania, which was depicted in the film, was known as Northern Epirus and had a substantial Greek minority.
Action of the Tiger was the first and only production for Van Johnson Enterprises, Inc. As noted in reviews, portions of the film were shot on location in Spain, which stands in for the Albanian countryside, with cast headquarters in Almunecar, Spain. Additional shooting took place in Athens, Greece and Metro-Goldwyn-Mayer Studios in Boreham Wood, Elstree, England. Action of the Tiger marked actress Martine Carol's first major role in an English language film.