TCM The Monster that Challenged the World (1957)

I have always enjoyed staying up late on Friday and Saturday Nights and/or Saturday Afternoons to watch broadcasts of old horror movies. One of my favorite black and white horror movies from 1957 is "The Monster that Challenged the World."
The Monster That Challenged the World is a 1957 black-and-white science-fiction monster film from Gramercy Pictures,[a] 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 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.