美国电影界的新纪录片探讨了UFO和外星人的历史. New documentary explores UFO and alien history in Hollywood films.

几十年来好莱的电影都以UFO和外星人为主题, 一部新的纪录片探讨了这一类型的历史. Hollywood has featured UFOs and extraterrestrials in movies for decades, with a new documentary exploring the genre's history.