This Island Earth

This Island Earth is a 1955 American science fiction film directed by Joseph M. Newman and Jack Arnold. It is based on the novel of the same name by Raymond F. Jones which was originally published in the magazine Thrilling Wonder Stories as three related novelettes The Alien Machine in the June 1949 issue, The Shroud of Secrecy in December 1949, and The Greater Conflict in February 1950. The film stars Jeff Morrow, Faith Domergue and Rex Reason.

Dr. Cal Meacham Reason, a noted scientist and jet pilot, is sent an unusual substitute for electronic condensers that he ordered. Instead, he receives instructions and parts to build a complex communication device called an interocitor. Although neither Meacham nor his assistant Joe Wilson Robert Nichols have heard of such a device, they immediately begin construction. When they finish, a mysterious man named Exeter Morrow appears on the devices screen and tells Meacham he has passed the test. His ability to build the interocitor demonstrates that he is gifted enough to be part of Exeters special research project.Intrigued, Meacham is picked up at the airport by an unmanned, computercontrolled Douglas DC3 aircraft with no windows. Landing in a remote area of Georgia, he finds an international group of topflight scientists already present, including an old flame, Dr. Ruth Adams Domergue. Cal is confused by Ruths failure to recognize him and suspicious of Brack Lance Fuller and other oddlooking men leading the project. ........

Source: Wikipedia