Here’s a quicky:

“is kristen stewart autistic”?

No, Kristen Stewart is not, at least as far as I know. Without wanting to be prejudicial, I’m pretty sure that an autistic person could not work as an actor.

And while we’re talking about Twilight actors:

“does robert pattinson smoke”?

For this question, I had to risk my life by descending deep into teenage fangirl territory. I hope you appreciate my efforts, anonymous googler.

According to his official myspace profile [it hurts to link there, I tell ya, it hurts], no, he doesn’t smoke.

According to the official fan forum, he does.

Judging with a lot of stereotypes involved, he’s a young English guy, so I’d go with the “yes, he smokes and drinks”-version.