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, in which she stars alongside Jack Lemmon
, earned Shirley her second Oscar nomination and is one of her most well-known films. Both a comedy and a drama, this five-time Academy Award-winning film tells the story of C.C. Baxter (Jack), an office drone who allows philandering managers to use his apartment for their affairs in exchange for a promotion. The setup becomes a problem when his own love interest, Fran Kubelik (Shirley), becomes involved with Baxter's boss.