For the MST3K episode, see MST3K 309 - The Amazing Colossal Man.
Who else but a clown would have an expandable sarong like this?
- Col. Glenn Manning

The Amazing Colossal Man is a 1957 science fiction film directed by Bert I. Gordon. It was co-written by Bert I. Gordon and Mark Hanna, with uncredited contributions by George Worthing Yates.


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.

His military handlers try to help Glenn but they are unable to stop or reverse the growth. Glenn's fiancee remains devoted to him, but Glenn slowly becomes mentally unstable. He reaches 50 feet tall, escapes his confines, and wreaks havoc upon Las Vegas before falling over a cliff to his (apparent) death.



MST3K Connections[]

Critical Response[]

  • Leonard Maltin wrote: "Two-and-a-half stars ... Starts well but ends up as your standard monster-on-the-loose flick."[1]
  • Michael Weldon in The Psychotronic Encyclopedia of Film wrote: "As soon as The Incredible Shrinking Man proved to be a hit, director-producer-writer-effects man Bert Gordon rushed out his opposite popular hit... The special effects stink, but who can resist Gordon's cheesy 50s movies? Look for the scene with the giant syringe."


  1. Leonard Maltin's Movie Guide, 2015 Edition