Whats this haircut called?

I usually have short hair I ask my hairdresser for a short ceaser cut, But I want something a little different. I want this kind of hairstyle:



http://www-movieline-com.vimg.net/images/assets_c/2010/09/Clash-of-the-Titans-Sam-Worthington_500-thumb-630xauto-20359.jpg



This might be a better picture:



http://www.empiremovies.com/_word_press/wp-content/uploads/2009/06/ew-clash-of-the-titans.jpg



What should I ask the hairdresser for?Whats this haircut called?
The best option, so you and the hairdresser are on the same page, is to just take in these pictures. They generally work well.