Prisoners of the Lost Universe

Prisoners of the Lost Universe is a low budget 1983 film set in a parallel universe and filmed in South Africa.

TV personality Carrie Madison goes to visit crackpot scientist Dr. Hartmann who has invented a teleporter to another dimension. On the way she gets into a car accident with electrician Dan Roebuck, mainly caused by earthquake tremors, which effectively destroys Dans pickup, and they argue. While demonstrating his machine to Carrie, Hartmann disappears. Dan comes to the house looking for help while he and Carrie examine the machine they, too, disappear. Carrie finds herself alone in what appears to be a prehistoric world in a parallel universe, called Vonya, where time runs differently. Unable to find the Doctor, Dan and Carrie must figure out a way to get back home. Before they can do that, however, they must deal with tribes of savage cavemen, as well as a brutal warlord named Kleel who has taken a liking to Carrie and seems to be unusually wellsupplied with Earth technology...An edited version of the film is featured in an episode of This Movie Sucks where it is made fun of by Ed the Sock, Ron Sparks, and Liana K. It is one of the few episodes of the season where the entire show is dedicated to one full movie instead of two movies edited down into a double feature though a Popeye the Sailor Man cartoon was also played for time. ........

Source: Wikipedia