Lt. Col. Glenn Manning is inadvertently exposed to a plutonium bomb blast at Camp Desert Rock. Though burned over 90% of his body, he survives, and begins to grow in size. As he grows, his heart and circulatory system fail to keep pace with his growth, and he is gradually losing his mind as a result of reduced blood supply to his brain. He reaches 50 feet tall before his growth is stopped. By this time he has become insane. He escapes and wreaks havoc upon Las Vegas before he is finally stopped.
Teresa E. Tutt <firstname.lastname@example.org>
NEVER SINCE "KING KONG" SUCH A MIGHTY MOTION PICTURE!
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Did You Know?
American International Pictures released this in a double feature with Cat Girl
(1957). See more
When the Colossal Man is rampaging along the strip, four cops standing by two police cars fire at him but when the giant tears the cowboy from atop the Pioneer Club and throws it at them, the cars are gone and there is a crowd of people around the cops. See more
[Dr. Lindstrom explains to Carol that Glenn's heart isn't growing as fast as the rest of his body
Dr. Paul Linstrom
Now, the reason for this is rather technical, Carol, but to give you a simplified layman's explanation, it might be explained that, since the heart is made up of a *single* cell for all practical purposes, instead of millions of cells like the rest of the organs of the body, it's reacting in an entirely different manner to this unknown stimulus or forces behind this whole thing.