A currently untitled film adaptation of Klonoa is in the works at Henshin. The film will have an original story set in the same universe as the games. Rob Peryeda will serve as producer, Hideo Yoshizawa will serve as executive producer, while Hitoshi Ariga will serve as the writer, artist, and character designer.  On January 19, Ash Paulsen of the YouTube channel GameXplain announced on Twitter that he had been brought on board as an associate producer.
When asked if the film's story would be an adaptation/retelling of Door to Phantomile, Rob Peryeda said that the film is "definitely not a rehash". 
- Klonoa's yellow coat may be a reference to the Marvel Comics character Jubilee.