Cat Soup

Cat Soup is a 2001 Japanese animated experimental short film directed by Tatsuo Satō, based on the manga created by Nekojiru. The surreal film follows Nyata, an anthropomorphic kitten, on his travel to the land of the dead and back in an effort to save his sister's soul. Cat Soup was released direct-to-DVD in Japan on 21 February 2001. Central Park Media licensed the film in North America under its Software Sculptors label and was released on DVD on September 9, 2003.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.