She speaks of wanting to vote for Oprah, and Jimmy Kimmel breaks in with "Are you allowed to vote here in the United States?" Her "I don't know actually..." feels utterly disingenuous. "I'm not a resident here..." as if being a resident would be enough.

But she's a great actress and could easily play disingenuous.

In a similar vein, she is beautifully made up to look as though she is wearing absolutely no makeup.

By they way, I love her as an actress and I strongly encourage the no-makeup look. It's especially refreshing to see the absence of eye makeup.

IN THE COMMENTS: Amadeus 48 said:

According to Wikipedia, she was born in the Bronx (so she is a US citizen by birth), but the family moved back to Ireland when she was three.

Well, then, that makes all the difference. She is a citizen, and her question about residency is exactly the one I would ask.

ADDED: Now, I'm annoyed at the show for playing a cute little game, with Jimmy treating the actress as if she were an airhead and me, at home, getting drawn in. Saoirse could easily have said — at some point — "I am an American citizen." She seems to have chosen to leave us with the misimpression that she's dumb. The old dumb blonde of long Hollywood lineage?!

Or is it that she's playing her Irishness very heavily and doesn't want to be thought of as American?