Crack-Up is directed by Irving Reis and collectively written by John Paxton, Ben Bengal and Ray Spencer from Fredric Brown's story Madman's Holiday. It stars Pat O'Brien, Claire Trevor, Herbert Marshall, Ray Collins, Wallace Ford and Dean Harens. Music is by Leigh Harline and cinematography by Robert De Grasse. 　　Art curator George Steele (O'Brien) believes he has been in a train...