See a UFO documentary from the 1970s

Daily Grail has a documentary on UFOs made in the 1970s: There's much footage from old movies, featuring ominous orchestral music. However, the documentary also covers the origin of the term 'flying saucer.' And there's a clip of Steven Spielberg discussing whether he'd take a ride on a spaceship, since 1977, the year the documentary was made, was the same year that Spielberg brought us Close Encounters of the Third Kind. Check it out here.