The Monster That Challenged the World is a 1957 black-and-white science-fiction monster film from Gramercy Pictures, produced by Arthur Gardner, Jules V. Levy, and Arnold Laven, and starring Tim Holt and Audrey Dalton. The film was distributed by United Artists as the top half of a double feature with The Vampire. The film concerns an army of giant molluscs that emerge from California's Salton Sea.

Arnold Laven was an American film and television director and producer. He was one of the founders and principals of the American film and television production company Levy-Gardner-Laven. Laven was a producer of, among other things, the western television series The Rifleman and The Big Valley. He also directed motion pictures, including Without Warning!, The Rack, The Monster That Challenged the World, Geronimo, Rough Night in Jericho, and Sam Whiskey. In the 1970s and early 1980s, Laven directed dozens of episodes of television series, including episodes of Mannix, The A-Team, Hill Street Blues, The Six Million Dollar Man, Fantasy Island, The Rockford Files and CHiPs.