The thing I loved about DiCaprio's performance in WEGG was that it wasn't the typical "noble individual with a disability" performance. My wife works in a group home with 2 autistic children and one with a brainstem disorder, and I can tell you from experience that DiCaprio's performance is unflinchingly honest. It also helps that the character is well written; there is such a concern about being politically correct when playing people with disabilities instead of being concerned about an accurate portrayal. DiCaprio's performance ranks up there with Charlize Theron's in Monster and Hillary Swank's in Boys Don't Cry, in that you FORGET that it's an actor playing a character.