Richard Fleischer who would direct "Barabbas" "fantastic voyage" and "the Boston strangler,not exactly low budget efforts already proves with "clay pigeon" he was a great director from the start.One has sometimes the strange impression to watch a "Mandchurian candidate" in miniature .A nightmarish atmosphere ,a true film noir where trains and cars belt in the night,where an amnesic hero has to fight an unknown enemy .It's really a tour de force to pack so much action (and much of what happens works behind the scenes) in a very short flick (about an hour).The last scenes on the train were probably influenced by Hitchcock's "shadow of a doubt" .This little gem should not be missed.