“Paper Princes, Gypsies, and the Boy With No Return Address” is a story that enters the world of Liam Willow Plinkett, an eccentric 10-year-old boy whose imagination runs wilder than a stampede of buffalo chased by pterodactyls. Abandoned in a willow tree as a baby, Liam is searching for his identity. This is a film about imagination, bullying, wanting to belong and friendship.