Question about rear speakers.

[tippykitten]

Thanks for the help everyone. The room is fairly large (about 20 feet by 20 feet and will be primarily for movies). So it should be plenty big and the primary listening area is just about in the center of the room, so if i were to get smaller surrounds i would need to put them on stands because there would be nowhere to mount them. Are surrounds supposed to be that much higher than ear level? I was under the impression that ear level was the optimal height but i am not sure.