Argumento:
An alien (Klaatu) with his mighty robot (Gort) land their spacecraft on Cold War-era Earth just after the end of World War II. They bring an important message to the planet that Klaatu wishes to tell to representatives of all nations. However, communication turns out to be difficult, so, after learning something about the natives, Klaatu decides on an alternative approach.

Reparto

Michael Rennie Klaatu

Patricia Neal Helen Benson

Hugh Marlowe Tom Stevens

Sam Jaffe Professor Jacob Barnhardt

Billy Gray Bobby Benson

Frances Bavier Mrs. Barley

Rama Bai Scientific Delegate (uncredited)

Chet Brandenburg Farmer (uncredited)

Spencer Chan Scientific Delegate (uncredited)

Frank Conroy Mr. Harley (uncredited)

Medio: DVD Original,

Subtítulos: Inglés, Español, Portugués

Prestado: No

Rel. aspecto: 4:3