Stop Motion Movie History on Instagram: "In this rare behind the scenes clip, special effects master Ray Harryhausen demonstrates the basic process of Dynamation, the groundbreaking technique he pioneered that allowed actors and stop motion creatures to interact on screen like never before. . . While Harryhausen wasn't the first to combine stop motion and live action, having learned the craft from King Kong effects pioneer Willis O' Brien, he evolved the technique to be both more believable and