The film is directed by Hiromasa Yonebayashi who also wrote the screenplay with Riko Sakaguchi at Studio Ponoc.
German distributor Peppermint Anime is set to do a theatrical event for the film Mary and the Witch’s Flower on September 13th, 2018 and they’re starting to showcase some clips for it.
The film has Ruby Barnhill of The BFG playing the title character with Kate Winslet, Jim Broadbent, Ewen Bremner and Louis Ashbourne Serkis among the rest of the cast.