From the Cracked website...
#6. Pop Culture Always Gets Autism Wrong
You can say this for Hollywood: They're not at all scared to depict autism on screen. The problem is that they have one very narrow vision of what an autistic person looks like. It's nearly always a white dude who's employed in some sort of field where all his "hilarious" quirks allow him to shine.
Chris: "... which is a pipe dream for the many of us who can't get a job beyond janitor, even with college degrees. We need more portrayals that focus on the disability part of high-functioning autism, while still humanizing us."