Attack of the Crab Monsters 1957

Overview

Topic: Overview of the film "Attack of the Crab Monsters" (1957).
Role: Meticulous television and film archivist.
Constraints:
Write ONLY verifiable facts from the provided SYNOPSIS and SOURCES.
No invented titles, names, dates, episode counts, awards, ratings, box-office, or viewership numbers.
No guessing.
Original, neutral, encyclopedic prose.
Format: Plain text only (no markdown, no asterisks, no headings, no bullet points).
Length: 150-190 words.
First sentence must not contain spoilers.
Title: Attack of the Crab Monsters.
Year: 1957.
Genre: Science fiction and horror (also Sci-Fi).
Format: Black-and-white, independently made American film.
Producer/Director: Roger Corman (via Los Altos Productions).
Cast: Richard Garland, Pamela Duncan, Russell Johnson, Leslie Bradley.
Distributor: Allied Artists (as a double feature).
Runtime: 1h 3m (TMDB) or 1h 5m (Rotten Tomatoes).
Plot:
A group of scientists travel to a remote island to study the effects of nuclear weapons tests.
Their airplane mysteriously explodes, leaving them stranded.
The tests caused crabs to mutate into intelligent, impervious, telepathic giants.
The crabs intend to increase their numbers by breeding and travel to populated areas to feed.
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