An alien lifeform consumes everything in its path as it grows and grows.
The Blob is a 1958 independently made American science-fiction-horror film in color by De Luxe, produced by Jack H. Harris, directed by Irvin Yeaworth, and written by Kay Linaker and Theodore Simonson. The film stars Steve McQueen (in his feature film debut) and Aneta Corsaut and co-stars Earl Rowe and Olin Howland.