For Whom the Bell Tolls is a 1943 American epic war film produced and directed by Sam Wood and starring Gary Cooper, Ingrid Bergman, Akim Tamiroff, Katina Paxinou and Joseph Calleia. The screenwriter Dudley Nichols based his script on the 1940 novel For Whom the Bell Tolls by American novelist Ernest Hemingway. The film is about an American International Brigades volunteer, Robert Jordan (Cooper), who is fighting in the Spanish Civil War against the fascists. During his desperate mission to blow up a strategically important bridge to protect Republican forces, Jordan falls in love with a young woman guerrilla fighter (Bergman).

Vera Zorina, born Eva Brigitta Hartwig, was a Norwegian ballerina, theatre and film actress, and choreographer. Today, she is chiefly remembered for her films choreographed by her then-husband George Balanchine. They include the Slaughter on Tenth Avenue sequence from On Your Toes, The Goldwyn Follies, I Was an Adventuress with Erich Von Stroheim and Peter Lorre, Louisiana Purchase with Bob Hope, and dancing to "That Old Black Magic" in Paramount Pictures' Star Spangled Rhythm.