The only good portrayal I know of where aspergers is explicitly mentioned is Abed in Community. I can think of a few other instances with a good aspie character...but only in movies that never mention the word "aspergers." Some of these are "Waiting for Forever," "Unbreakable," Lady in the Water." I think in such cases a screenwriter or director had aspergers and intuitively wrote his own characteristics into a character.