The Cyclops is a 1957 American science fiction horror film written, produced and directed by Bert I. Gordon, starring James Craig, Lon Chaney Jr. and Gloria Talbott.

Scientist Russ Bradford, mining expert Martin "Marty" Melville, and pilot Lee Brand fly into unknown territory.

While searching the area, however, they uncover giant mutated Earth animals such as a mouse, an eagle, a mygale, a green iguana, a tegu and a boa.

More importantly, they encounter a mutated 25-ft tall, one-eyed human monster who became disfigured due to an exposure to radioactivity from massive radium deposits in the area.

[5] Production effects in The Cyclops were limited to backscreen projection, rudimentary matte work, and incorporating large images into the scenes.