Film editor and producer who entered American film at RKO as editor of PANAMA LADY in 1939. Other film editing credits include I'M STILL ALIVE (1940), MEXICAN SPITFIRE'S BABY (1941), MEXICAN SPITFIRE AT SEA and MEXICAN SPITFIRE SEES A GHOST (both 1942), MR. LUCKY (1943), SHOW BUSINESS (1944) and Alfred Hitchcock's NOTORIOUS (1946). Warth's producing credits include TALL IN THE SADDLE (assoc. prod., 1944), BACK TO BATAAN (assoc. prod., 1945), DESIGN FOR DEATH (1947), BLOOD ON THE MOON (1948), THE CAPTIVE CITY (1952), and RETURN TO PARADISE (1953).  Documentary (Features) 1947: DESIGN FOR DEATH - Producer (w. Richard Fleischer & Sid Rogell, exec. prod.) 1 nomination, 1 Award