Pound

Pound is a 1970 film directed and written by Robert Downey, Sr., it was based on The Comeuppance, an Off-Off Broadway play written by Downey in 1961. It is about several dogs, along with a Siamese cat and a penguin, at a pound, as they await being put to sleep; the animals are played by human actors. It was the film debut of Robert Downey, Jr., the director's 5-year-old son, as a puppy.