Prisoners of the Lost Universe is a 1983 British fantasy science fiction action film by Terry Marcel and Harry Robertson. Shot in South Africa, three people are transported to a parallel universe when an earthquake occurs, just as the scientist is experimenting with his “matter” transmitter. The trio must escape the strange world of Vonya while dealing with a number of villains. (Wikipedia)
https://cinematicdiversions.com/prisoners-of-the-lost-universe-1983-review-with-rifftrax/