When I was a kid in the early ’80s, I made a point to catch Suspense Theater every Saturday afternoon. It aired on WPGH in Pittsburgh and showed mostly horror movies — like Hammer/Amicus/AIP stuff — with a dash of sci-fi (including timeless classics like Starcrash and Starship Invasions). It also showed one unidentified movie that I’ve wondered about all these years later, but I only remember the opening-credit sequence.
It’s in color, and I’m guessing from the ’60s or ’70s. It starts with a guy walking up a dark stairway. He reaches a door at the top of the steps. The camera stays near the bottom of the steps, looking up at him from a distance. The door opens. Someone or something then emerges and hits the guy, apparently striking his head. He then tumbles back down the steps and toward the camera.
Now here’s where it gets especially weird and memorable: the movie loops that footage — starting with the door opening — all the way through the opening credits. So you see the guy take a hit and fall down the steps over and over again until the movie really begins. Sadly, that’s all I recall.
I will be grateful (and impressed!) if anyone can ID this movie.