We all have energy vampires in our life, and they are brought to the screen here by Tobe Hooper (The Texas Chainsaw Massacre, Poltergeist). In this saga co-authored by Alien screenwriter Dan O’Bannon, American and British astronauts unwittingly bring energy-sucking aliens back to Earth, and when one escapes into London – naturally, the nude, busty female one – all hell literally breaks loose.