The Invisible Boy extra on the "Forbidden Planet" 50th Anniversary DVD released in 2006 and on the Blu-ray released in 2010. Even on the Blu-ray, the film is in standard definition. The Invisible Boy The Invisible Boy (aka S.O.S Spaceship) is a 1957 black and white American science fiction film from Metro-Goldwyn Mayer, produced by Nicholas Nayfack, directed by Herman Hoffman, and starring Richard Eyer and Philip Abbott. It is the second film appearance of Robby the Robot, the science fiction character who "stole the show" in "Forbidden Planet" (1956), also released by Metro-Goldwyn-Mayer. According to an implied, subtle back story in "The
Planet of Evil but name, the Id monster from the 1956 MGM feature film "Forbidden Planet"." Howe and Walker also praised the jungle set and the performances of Frederick Jaeger and Ewen Solon, but criticised Prentis Hancock's "poor" portrayal of Salamar. Ray Dexter's assessment of "Planet of Evil" also acknowledged the influence of the 1956 film "Forbidden Planet", which inspired the writers to include an invisible, murderous monster, as well as elements of "Jekyll and Hyde". Reviewing the serial in 1999, literary critic John Kenneth Muir drew attention to similarities between "Planet of Evil" and Ridley Scott's 1979 film, "Alien", in particular the