You can say that all you like, but I've seen that clip and that is indeed Natalie Portman.
There is an ugly rumor going around that it is actually Agent One in a bikini.
Now that one I might believe, except have you seen the *shudders* pics he has posted of himself with his shrit off, he has bigger boobs then her. Portman does nothing for me, maybe if she looked more like a real woman she might, but she doesn't. Give me an actress that looks like a real woman over her any day, like Monica Belluci or Sasha Alexander.