Fox Film Corporation was the first to use the rear projection technique, in 1930 with their films "Liliom" and then "Just Imagine", and were subsequently awarded a technical Oscar for their work the next year. Shortly after this debut, Farciot Edouart ASC, at Paramount Pictures, refined the technique starting in 1933, and developed several new methods, such as syncing three projectors with the same background plate for more even and bright exposure. Linwood Dunn ASC, at RKO Radio Pictures, expanded on this with the use of traveling matte with films like "Flying Down to Rio" (1933).