Movies within movies by Egantx7

Question 12

In the 1958 version of this film, a significant scene takes place at the (very real and still open) Colonial movie theater (in Phoenixville, PA) during a showing of a real film called Daughter of Horror. In the 1988 remake of this film, the parallel scene takes place in an unnamed theater in Arborville, California, where the fictitious film Garden Tool Massacre is showing. In both cases, some of the patrons never make it out of the theater ... undigested. Identify the common title of these two films, one of which was the first starring role for a young Steve McQueen, the other starring Kevin Dillon (and with a second remake still on schedule for 2016).

The Blob