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The Return of the Rat is a 1929 British sound drama film directed by Graham Cutts and starring Ivor Novello, Isabel Jeans and Mabel Poulton. While the film has no audible dialog, it was released with a synchronized musical score with sound effects. It was made by Gainsborough Pictures at their Islington Studios. It was also released in a silent version for cinemas not wired for sound. imdb.com