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Puss Gets the Boot is a 1940 American animated short film. It served as the first short in what would become the Tom and Jerry cartoon series, though in this short they were not referred to by these names. Directed by William Hanna and Joseph Barbera and produced by Rudolf Ising, it was based on the Aesop's Fable, The Cat and the Mice. As was the practice of MGM shorts at the time, only Rudolf Ising is credited. It was released to theaters on February 10, 1940, by Metro-Goldwyn-Mayer. Wikipedia