Mar 4, 2018 (Glasgow Film Festival (UK)) Apr 14, 2018 (Japanese Film Festival premiere (Ireland)) Apr 15, 2018 (Brussels International Fantastic Film Festival (Belgium)) Apr 16, 2018 (London premiere (UK)) Jun 12, 2018 (Annecy International Animation Film Festival (France)) Jun 21, 2018 (Shanghai International Film Festival (China)) Oct 26, 2018 (DVD and Blu-ray premiere (Japan)) Nov 3, 2018 (Asian Film Festival Barcelona (Spain)) May 29, 2019 (DVD and Blu-ray premiere (France))