It's actually funny but I was watching the Eraserhead DVD and David Lynch is discussing shooting the film with one of his collaborators (who also plays the Log Lady in Twin Peaks, I believe) and she made mention that while shooting the film (which took place over a span of years, off and on) he always had the same thing for lunch and I remember thinking is he an Aspie?
It seems to be one of my traits as well, at least when I go to work. At home, I have a little more variety, but anyone who's consistently seen me in the lunch room at work will attest that I always bring the same thing to eat.
Also, I would say that Sissy Spacek's character in The Straight Story is very likely an Aspie.
And I love Twin Peaks as well. I'm currently going through the second season DVD box set that was (finally!) released last week.
And I'd say Agent Cooper has some aspie traits as well.