 The enormous success of _Blob, The (1958)_ (qv) led producer  Jack H. Harris (qv) to try and do a sequel. The project had been  shelved for many years. The next door neighbor at his beach house,  Larry Hagman (qv), admitted that he had never seen "The Blob".  Harris projected his personal 16mm print of the film for him. Hagman  showed such interest and asked about doing a sequel to the film that  Harris resurrected the project. Larry Hagman wound up directing this  sequel and doing a small role in it as well.