Instruct: Classify the given review as either positive or negative.
Query: Bitter-sweet Tale of Growing Up

Thumbsucker tells the story of a 17 year old who still sucks his thumb. It shows what his family must go through when dealing with the problem. As well as what happens with his school and social life.This is a very truthful realistic story of teenage life and learning to grow up.The outstanding cast, makes this a fantastic movie. Keanu Reeves as the holistic orthodontist, Vince Vaughn as the high school debate team teacher are both outstanding.