Mourning Becomes Electra is a 1947 American drama film by Dudley Nichols adapted from the 1931 Eugene O'Neill play Mourning Becomes Electra, based in turn on the Oresteia. The film stars Rosalind Russell, Michael Redgrave, Raymond Massey, Katina Paxinou, Leo Genn and Kirk Douglas.

Catherine Rosalind Russell was an American actress, comedian, screenwriter, and singer, known for her role as fast-talking newspaper reporter Hildy Johnson in the Howard Hawks screwball comedy His Girl Friday (1940), opposite Cary Grant, as well as for her portrayals of Mame Dennis in the 1956 stage and 1958 film adaptations of Auntie Mame, and Rose in Gypsy (1962). A noted comedienne, she won all five Golden Globes for which she was nominated. Russell won the Tony Award for Best Actress in a Musical in 1953 for her portrayal of Ruth in the Broadway show Wonderful Town. She was nominated for the Academy Award for Best Actress four times during her career before being awarded a Jean Hersholt Humanitarian Award in 1973.