I watched the 1957 black and white Warner Bros., Sci-Fi/Horror movie, The Black Scorpion on Svengoolie. It was filmed at Estadio Universitario, Mexico City, Distrito Federal, Mexico. The stop-action animation was by King Kong expert Willis O’Brien with the help of Pete Peterson who did most of the hands on animation. Due to the low budget, most of it was created in Peterson’s home garage. The 30 foot long inch worm was an unused prop from the King Kong movie.