Posse is a 1975 American revisionist Western film in Technicolor and Panavision. It was produced and directed by Kirk Douglas who also starred. The screenplay was written by Christopher Knopf and William Roberts. The plot centers on a U.S. marshal with political ambitions leading an elite posse in pursuit of a notorious train robber to further his political career. The film premiered in New York City on June 4, 1975, and in June the same year in Berlin at the 25th Berlin International Film Festival, where Douglas was nominated for the Golden Bear.