Why is Keira constantly compared to Scarlett Johansson? And I don't mean for that to be a rhetorical question, I really would like to know. Scarlett is my favorite actress, and Keira is somewhere on the list, but I don't see how in the world those two are always compared? Out of everyone else there is to compare them to. They're *so* different; as actresses, as people, and in the roles they take.