I might get bashed for saying this, but I think Ms. Knightley is very average looking and at times even unattractive. I think these actresses are much more attractive than her, even though they are underrated:

http://www.chakpak.com/se_images/21024_-1_564_none/katrina-kaif-wallpa per-21024-5641.jpg
http://im.sify.com/entertainment/movies/images/mar2008/deepika_padukon e.jpg
http://i191.photobucket.com/albums/z270/erikkocanierro/female%20celebs /aishwarya/Aishwarya-Rai-Pic-020.jpg
http://www.asin-photos.com/pictures/Photos/Asin-Photos-019.jpg
http://ww2.tagheuer.com/_img/Ambassadors/Priyanka%20Chopra/big/00-TAG- Heuer-Priyanka-Chopra.jpg

I think Keira has a really big face, and she is very boyish.