I'm With Natalie Portman. Apparently Natalie Portman doesn't understand celibacy.

SOME roles just don't suit Natalie Portman. At the junket for the film version of his "Doubt," playwright John Patrick Shanley was asked how Amy Adams won the role of an emotionally conflicted nun. "I'm trying to think of what the etiquette is on this," Shanley chuckled, blushing a bit. Urged on by a blogger for gossipsauce.com, he continued, "Well, we asked Natalie Portman, and Natalie was very interested but kept saying she had a problem. And we finally nailed down as to what the problem was. She basically said she didn't understand celibacy."

John Patrick Shanley seems to have found this to be a serious limitation on Natalie Portman's part. But I'm with Natalie. I have no idea why somebody would be voluntarily celibate and no understanding of why anybody would embrace a life of celibacy as a Catholic priest or a nun.