The Green Slime (ガンマー第3号 宇宙大作戦, Ganmā Daisan Gō: Uchū Daisakusen, aka Gamma 3: Operation Outer Space) is a 1968 science-fiction film produced by MGM in the United States and shot in Japan at the studios of Toei Company by director Kinji Fukasaku. The film was spearheaded by Ivan Reiner and Walter Manley, the same creative team who produced similar Italian outings like Wild, Wild Planet.