Ok so the movie I’ve been trying to remember for about 25 years or so looked like The Dark Crystal and The Neverending Story…except the only part I remember is someone crawling in a round room on the ceiling and walls and was trying to get to a flower or something that was in a glass case like the one the rose from Beauty and the Beast was in. Does that ring a bell to anyone?
Labyrinth (1986)? https://www.youtube.com/watch?v=k1Z2pk5J9Ng