Uchu Kaisokusen (宇宙快速船 Space Hypership?), known as Invasion of the Neptune Men in the United States, is a tokusatsu SF/superhero film produced by Toei Company Ltd. (as “New Toei”) in 1961. The movie starred then 22-year old Sonny Chiba as the intergalactic superhero Iron Sharp. As of 2008, this is the only appearance of Iron Sharp (who’s dressed in silver tights, helmet, cape, carries a ray gun and rides a car-like rocketship), who is called “Space Chief” in the US version. In either case, this film is similar to many a show in the Toei Superhero genre from the same period, like Planet Prince (Toei’s movie version).