He did the horror movies mostly to fund his art collection. He was certainly aware of the campy nature of William Castle's, and to an extent, Roger Cornan's films, so was usually winking at the audience. When he respected the material, as in Corman's last Poe film, "The Tomb of Ligeia", he could play it straight. As a matter of fact, I recently watched "The Tingler", and he didn't seem to be hamming it up so much there, which is surprising. Of course, he may not have been aware that Castle was going to be going around putting electric shockers in the theater seats. 😄
"Ligeia" and "
Troll Hunter" were up for free on YouTube, but I see both have been taken down, unfortunately. But there's still a
lot of good stuff available; last night I watched this atmospheric psychological Hammer thriller from 1964: