Blobfest is an annual celebration of the 1958 film The Blob. It is held in Phoenixville, PA where most of the movie was filmed. The best part is that you can watch the film in the theater that is in the movie. I have been four times. They always show double bills of The Blob and a similar film from that era. Blobfest raises money for the Colonial Theatre and I encourage you to support it.
The Criterion Collection has excellent Blu-Ray and DVD releases of the film.