Thumbsucker (2005, U.S.A.)

Meet Justin Cobb (Lou Pucci), a teenager who still sucks his thumb.  He realises that it’s totally disrupting his home, love and school love life.  So he allows his orthodontist (Keanu Reeves) to break him of the habit through hypnosis. Justin begins to experiment with prescription drugs, pot and sex as alternate means to overcome his anxieties and become “normal”.  However he never realises  that normal is just a state of mind.