Budgeted at slightly more than the 1958 version at $150,000, filming began in the spring of 1971, primarily on the property of a horse stable and ranch home in Diamond Bar, California, as well as in Pomona, California, both 30 miles east of Los Angeles. The climactic finale at the bowling alley and ice skating rink was filmed at two separate locations. The former Grand Central Bowl in Glendale, California, stood in for the bowling alley (the building still stands as part of the Disney Imagineering complex, and was also filmed as Jack Rabbit Slims in Pulp Fiction), while the ice skating rink scenes were filmed at the former Rollerdrome in Culver City, California (immediately prior to the building being torn down in August, 1971 to make way for Tellefson Park). The party scene was filmed in a loft in Venice, California. In an interview in Fangoria magazine, screenwriter and first time producer Anthony Harris stated that a good portion of the filmed material was improvised on the set, and that his script was ignored. While in production, Harris was also in the process of preparing a second sequel, Curse of the Blob, but these plans were never implemented.
