Carnivale

In this animated tale, a group of children are transported through a portal to another dimension where they are thrilled to discover a magical amusement park just for them. There, they meet Milly (Helena Bonham Carter), who claims to have been trapped at the park for years without aging. The group soon realizes that if they can't find their way back soon, they'll be trapped as well -- and turned into objects as part of the carnival. Can the kids put their minds together and escape?