The Monster That Challenged the World

The Monster That Challenged the World (original filming titles: The Jagged Edge and The Kraken) is a 1957 black-and-white science-fiction monster film from Gramercy Pictures, produced by Arthur Gardner, Jules V. Levy, and Arnold Laven (who also directed), and starring Tim Holt and Audrey Dalton. The film was distributed by United Artists as a double feature with The Vampire. The film concerns an army of giant mollusks that emerge from California's Salton Sea. The Monster That Challenged the World's Gramercy Pictures is not related to the former PolyGram division of the same name.