AllMovie

A young boy named Harold possesses a vivid, whimsical imagination that encourages an adventurous spirit. When he discovers that one of his crayons in his favorite color, purple, can transport him to magical, wondrous worlds, Harold embarks on a series of adventures through this sweeping landscape, cultivating his sense of self along the way. Carlos Saldanha directs the animated family fantasy based on the children's book of the same name. Co-starring Zachary Levi, Zooey Deschanel, and Tanya Reynolds.