Based on Kenji Inoue and Kimitaka Yoshioka's booze-fueled diving comedy manga of the same name, the film is directed by Tsutomu Hanabusa (live-action Kakegurui) with the production company "THE FOOL". Grand Blue Dreaming is set for a May 29th release in Japan. Warner Bros. Japan is distributing the film.
[Source: Anime News Network]