I only remember this one scene: 2 people (I’m pretty sure at least one of them was male) laying on their backs in a cave/dungeon. One of them uses a sword to brace a slowly descending spiked/bladed ceiling.
I watched it when I was in high school (1990 – 1995). I think it was somewhat lighthearted, rather than suspenseful.
(maybe 70’s) 80’s / early 90’s medieval fantasy. Could be either movie or TV show.
Movies I’ve ruled out so far: Dragonslayer, Red Sonja, Deathstalker I, II, and III, Sorceress (1982), The Warrior and the Sorceress (1984)