I never even knew this. The thing was first, then Prince of Darkness was 2nd, and In the Mouth of Madness was the 3rd. I've never even seen the last 2.
From wiki:
Is this common knowledge or am I just slow?
From wiki:
Prince of Darkness is a 1987 American supernatural horror film directed, written and scored by John Carpenter. The film is the second installment in what Carpenter calls his "Apocalypse Trilogy", which began with The Thing (1982) and concludes with In the Mouth of Madness (1995).
Is this common knowledge or am I just slow?