The Adventures of Superman (radio) home planet of Krypton is located on the far side of the sun, as opposed to a distant star system as it is in most stories. During the journey to Earth, baby Kal-el grows into an adult and emerges fully grown from his ship after it lands on Earth. He is never adopted by the Kents but immediately begins his superhero career. This was eventually retconned in later episodes to match the narrative of the comic books. This serial introduced the fictional mineral kryptonite, the radiation from which can weaken and even (in some continuities) kill Superman. Aside from giving
Superman in film Superman in film The fictional character Superman, an American comic book superhero in DC Comics publications, has appeared in movies almost since his inception. He debuted in cinemas in a series of animated shorts beginning in 1941, and then starred in two movie serials in 1948 and 1950. An independent studio, Lippert Pictures, released the first Superman feature film, "Superman and the Mole Men", starring George Reeves, in 1951. Ilya and Alexander Salkind and Pierre Spengler purchased the "Superman" film rights in 1974. After numerous scripts, Richard Donner was hired to direct the film, filming "Superman" (1978) and "Superman II"