 In the United Kingdom, the film made its premiere on 11 October 2014 at BFI London Film Festival and it had a wider theatrical release on 22 May 2015.At night, while the Moomin family and residents of Moominvalley enjoy a party around a bonfire atop a cliffside, a pirate ship mistaking the blaze for a lighthouse crash into rocks at sea, forcing the crew to abandon ship and their hostages, Mymble and Little My.The next morning, Moomin is stuck between deciding to help Moominmamma with washing, going fishing with Snufkin and acting out a scene with Snorkmaiden, wishing he knew how to say no to others.