The electronic engineer Dr. Cal Meacham (Rex Reason) is a prominent scientist that is studying industrial application of nuclear energy and also a great pilot. One day, he receives a different condenser and soon his assistant Joe Wilson (Robert Nichols) receives a manual instruction and several components of a sophisticated machine. Carl and Joe build a communication apparatus and a man called Exeter (Jeff Morrow) contacts Carl. He tells that Carl has passed the test assembling the Interocitor and invites him to join his research. The intrigued Carl decides to travel to meet Exeter that sends an unmanned airplane to bring him to an isolated facility in Georgia. He is welcomed by Dr. Ruth Adams (Faith Domergue) but she mysteriously does not recall their love affair in the past. They team-up with Dr. Steve Carlson (Russell Johnson) and they note that the other scientists in the facility have been transformed, having a weird behavior. They decide to flee in a car, but they are attacked by rays and Steve dies. Carl and Ruth also witness the facility blowing-up and they escape in an airplane. However they are pulled up into a flying saucer and realize that Exeter is an alien. Whal is the objective of the aliens?

"This Island Earth" is an entertaining sci-fi from the 50's, with a story of aliens that need help from the Earthling scientists in their war against another planet. For a film made sixty years ago, the special effects, the monster, sets and scenarios are great. My vote is six.

Title (Brazil): "Guerra Entre Planetas" ("War Between Planets")

Note: On 17 November 2017 I saw this film again.

The planet Metaluna is desperate need of Uranium to power its defense . As Aliens led by Exeter , Jeff Morrow , come to Earth seeking scientists to help them against enemy invaders . Two scientific , Rex Reason Faith Domergue , are deceived , menaced , abducted and transported from earth to a weird and ruined planet where occurs explosion and destruction.As our heroes are theatened by unknown forces .

Acceptable Scifi movie has thrills , intricate gadgetry , emotion , FX ahead of their time and super mutant monsters .This classic and rare Sci-Fi is considered to be the first serious film about interplanetary escapades .It contains primitive special effects and abundant matte painting . Including passable effects of a flying saucer based on a famous picture of an unidenfitied flying object UFO . Mediocre interpretation by an average cast. Starred by little known actors as Rex Reason as a nuclear scientist , Jeff Morrow as the rare alien , and the beautiful Faith Domergue as a nuclear fission expert who screams lustily . Other secondaries are given little to do such as Lance Fuller , Russell Johnson , Douglas Spencer and Richard Deacon . Here stands out the decent makeup by Bud Westmore creating pulsating cranium FX makeup on a gigantic and ugly Alien monster. Although some reviewers felt that the mutant utterly ruined an otherwise acceptable film . It was shown in US drive-in on a double bill with another classic Scfi titled Forfidden planet .

Strange but appropriate musical score from Herman Stein , Hans J Salter and Henry Mancini . Colorful cinematography in brilliant technicolor , by Clifford Stine , as technical details are presented in convincing enough fashion , being the only technicolor scifi movie Universal-International ever made .This genuine and decent science fiction was well produced by Willian Alland and professionally directed by Joseph M Newman . He was a prolific craftsman who made all kinds of genres as drama , gangster movie , Film Noir , adventure , such as : Tarzan ,Jungle patrol , The king of the roaring 20s the story of Arnold Rothstein , Love nest , Great Dan Patch and , of course , Science Fiction with this vintage film of the fifties titled This island earth. Rating : 6/10 , decent movie . Essential and indispensable watching for SciFi buffs . Well worth seeing.

This film has a pretty low score on IMDB--5.4 last I checked. I find this very hard to believe since it's one of the best sci-fi movies of the 1950s. Aside from a few classics (such as THE DAY THE EARTH STOOD STILL and INVASION OF THE BODY SNATCHERS),this is possibly the best of the genre.

A lone scientist is approached by a mysterious stranger--sort of like the same way hunters attract deer with bait. The doctor's curiosity leads him to a far off secret installation where WEIRD things are occurring. For example, old friends suddenly don't remember him at the base and some also behave a bit like zombies. Then he finds out it is run by aliens!!!! Why they recruited him and what happens next I'll let you find out--as this is only the first half of the film! Watch it for great special effects for the time, an interesting story AND aliens who are neither good nor evil--just like us humans!