Similar fantasies have considered theories of abduction by aliens in flying saucers. The Aliens also have a ride at Disney theme parks called Alien Swirling Saucers. The term "flying saucers" and the popular notion of the UFO originated in 1947. The first flying saucers were produced in the 1950s. Some figure animation was used to show the aliens emerging from the saucers. Above the three were three flying saucers coming in for a landing. He heads to the Space Science Lab after hearing of multiple sightings of "flying saucers". He also felt much of the city's structures resembled flying saucers and rocket ships. Quisp is a baked paste of corn meal and syrup shaped like saucers. Donald Keyhoe later began investigating flying saucers for "True" magazine. The U.S. Air Force engage the flying saucers with some success. The scene where the military fires at the flying saucers is actual military stock footage. Media attention to the Arnold sighting helped publicize the concept of flying saucers. The film recycles stock footage from "Earth vs. The Flying Saucers" (1956). All feature the "Flying Saucers Over Hollywood" documentary and the original theatrical trailer.