Growing...! Growing...! Growing...! To a Giant! to a Monster! When will it stop?
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.
The Amazing Colossal Man (1957) is a science fiction, adventure and thriller film directed by Bert I. Gordon, released on October 25, 1957 with a runtime of 1h 20m. It stars Glenn Langan, Cathy Downs, William Hudson and Larry Thor. Viewers rate it 4.6 out of 10 across 49 ratings.
Watch the official trailer for The Amazing Colossal Man before you stream it.
Glenn Langan
as Lt. Col. Glenn Manning
Cathy Downs
as Carol Forrest
William Hudson
as Dr. Paul Linstrom
Larry Thor
as Maj. Eric Coulter, MD
James Seay
as Col. Hallock
Russ Bender
as Richard Kingman
Hank Patterson
as Henry
Frank Jenks
as Truck Driver
Jimmy Cross
as Sergeant at Reception Desk
June Jocelyn
as Nurse Wilson
Stanley Lachman
as Lt. Cline
Harry Raybould
as MP at Main Gate
Directed by Bert I. Gordon, written by Mark Hanna, Bert I. Gordon and George Worthing Yates, produced by Bert I. Gordon.
Average viewer score of 4.6/10 from 49 ratings.
They 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 using a man for the colossus, they could not use a stop-motion miniature as King Kong, and I think the movie suffered for it. They didn't even make a hand to interact with…
Reviewed on June 16, 2026
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The main cast of The Amazing Colossal Man (1957) includes Glenn Langan, Cathy Downs, William Hudson, Larry Thor and James Seay. The film was directed by Bert I. Gordon. You can see the full cast and crew list, with character names, further up this page.
The Amazing Colossal Man was released on October 25, 1957 and runs for 1h 20m.
The Amazing Colossal Man (1957) holds an average rating of 4.6 out of 10 from 49 viewer votes, and is a good pick if you enjoy science fiction, adventure and thriller films. Read the viewer reviews on this page to decide for yourself.
Yes. The official The Amazing Colossal Man trailer is embedded in the trailer section of this page and plays instantly, no download or sign-up required.
