Mack & Mabel is a musical with a book by Michael Stewart and music and lyrics by Jerry Herman. The plot involves the tumultuous romantic relationship between Hollywood director Mack Sennett and Mabel Normand, who became one of his biggest stars. In a series of flashbacks, Sennett relates the glory days of Keystone Studios from 1911, when he discovered Normand and cast her in dozens of his early "two-reelers", through his creation of Sennett's Bathing Beauties and the Keystone Cops to Mabel's death from tuberculosis in 1930.

Gerald Sheldon Herman was an American composer and lyricist, known for his work in Broadway theatre.