Have you noticed what they did to the hunger games movie?

Well, have you noticed that Jennifer Lawwrence, Josh Hutcherson, and Liam Hemsworth, are supposed to be super hot, and super, new fresh actors? Have you noticed that they casted 'big' people for the main three, then they casted unknown, not so good-looking people as the side cast, so Jennifer and Josh and Liam wouldn't have to compete with anyone in looks?