One of the movies' greatest actors and most colorful characters, a real-life tough guy with the prison record to prove it, Robert Mitchum was a movie icon for an almost unprecedented half-century, the cool, sleepy-eyed star of such classics as The Night of the Hunter; Heaven Knows, Mr. Allison; Cape Fear; The Longest Day; Farewell, My Lovely; and The Winds of War. Mitchum's powerful presence and simmering violence combined with hard-boiled humor and...