To Beep Or Not To Beep (1963) ****

One of the best Road Runner cartoons, with spectacular backgrounds and an impressive use of perspectives. The finest gags involve a large coil spring attached to a huge rock that throws Coyote in all directions and a bizarre catapult that hits Coyote with a boulder no matter where he stands or hides. As it turns out, the catapult wasn't built by ACME (Coyote's regular and trusted supplier), but by the Road Runner Manufacturing Corp.!