ILM CLASSIC IMAGE: WALK LIKE AN AT-AT!

Two Imperial Walkers prepare to penetrate the Rebel ground defenses and destroy the enemy shield generator in this great stop motion image from 1979/1980-the Walker battle is still one of the greatest scenes in any film, let alone a STAR WARS one.

Check out this early EMPIRE trailer, too, to see the Walkers when, in early footage, they fired blue lasers instead of red: http://www.youtube.com/watch?v=EH9z8se3Aho