i think of his characters as being xnfj like, rushmore, darjeeling limited, huckabees, shopgirl. always Fe not Fi, and F is always really strong just not usually very healthy. the interviews make me think he's enfj.
I could see him as ENFJ in Rushmore & Huckabees. Haven't seen the other film. I don't see much Fe in Shop Girl. He seems awkward and out of touch with emotions, until the end. He seemed like INTP guys I've dated...
Again, I don't know about his real personality. I would think NF also, just based on his choices in roles.
"Charlotte sometimes dreams a wall around herself. But it's always with love - So much love it looks like everything else. Charlotte Sometimes - So far away, glass sealed and pretty." - The Cure