Moss Hart

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This May 13, 2014 photo shows siblings Cathy and Christopher Hart during a joint interview at Lincoln Center Theater in New York. The Harts have become backstage cheerleaders for "Act One," the new Tony Award-nominated adaptation of the early life of their late father Moss Hart. Moss Hart was one of Broadway's most successful creators, co-penning such hits as "You Can't Take It With You" and "The Man Who Came to Dinner," and directing "Camelot" and "My Fair Lady." He died at age 57 of a heart attack in 1961. (AP Photo/Mark Kennedy)