<P> Her film career began in earnest in 1937 when she signed a contract with RKO Radio Pictures, and appeared in the films Oh Doctor and Stage Door . Her Stage Door portrayal of a fast - talking, witty supporting character gained Arden considerable notice and was to be a template for many of Arden's future roles . In 1938, she appeared in a supporting part in the comedy Having Wonderful Time, starring Ginger Rogers and Lucille Ball . This was followed by roles in the crime film The Forgotten Woman (1939), and the comedy At the Circus (1939), opposite Groucho Marx, a role that would require her to perform acrobatics . </P> <P> In 1940, she appeared opposite Clark Gable in Comrade X, followed by the drama Manpower (1941), opposite Marlene Dietrich . She also appeared in a supporting part in the Red Skelton comedy Whistling in the Dark (1941), and the romantic comedy Obliging Young Lady (1942). Her many memorable screen roles include a supporting role as Joan Crawford's wise - cracking friend in Mildred Pierce (1945) for which she received an Academy Award nomination as Best Supporting Actress, and James Stewart's wistful secretary in Otto Preminger's murder mystery, Anatomy of a Murder (1959). (One of her co-stars in that film was husband Brooks West .) In 1946, exhibitors voted her the sixth-most promising "star of tomorrow". </P> <P> She became familiar to a new generation of film - goers when she played Principal McGee in both 1978's Grease and 1982's Grease 2 . She was known for her deadpan delivery of jokes in films . </P> <P> Arden's ability with witty scripts made her a natural talent for radio; she became a regular on Danny Kaye's short - lived but memorably zany comedy - variety show in 1946, which also featured swing bandleader Harry James and gravel - voiced character actor - comedian Lionel Stander . </P>

Who played principal mcgee in the grease films
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