Story Line
Lt. Col. Glenn Manning is inadvertently exposed to a plutonium bomb blast and although he sustains burns over 90% of his body, he survives. Then he begins to grow, but as he grows he starts losing his mind. By the time he stops he is 50 ft tall, insane and is on the rampage.
“Growing...! Growing...! Growing...! To a Giant! to a Monster! When will it stop?”
Top Cast

Glenn Langan
Lt. Col. Glenn Manning

Cathy Downs
Carol Forrest
William Hudson
Dr. Paul Linstrom

Larry Thor
Maj. Eric Coulter, MD

James Seay
Col. Hallock

Russ Bender
Richard Kingman
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Rating
4.6/ 10
Release Date
1957-10-25
Runtime
1h 20m
Genres
Science FictionAdventureThriller

Part of the Series
The Amazing Colossal Man Collection
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User Reviews (1)

Sierbahnn
5/10
•6/16/2026They made a real effort
Given the technology available to the team making this, for the budget they had, they tried. Some of the effects, with the giant, as not great, not even by the 50's standards. Certainly it looks hokey to us.
As they were u...






