All the King's Men is a 1949 American political drama film written, produced, and directed by Robert Rossen. It is based on Robert Penn Warren's Pulitzer Prize-winning 1946 novel of the same name. It stars Broderick Crawford, John Ireland, Mercedes McCambridge, and Joanne Dru. The film centers on the rise and fall of an idealistic-but-ruthless politician in the American South, patterned after Louisiana Governor Huey Long.

Robert Rossen was an American screenwriter, film director, and producer whose film career spanned almost three decades.