Nostalgia buffs are likely to be the main interested party as far as audience is concerned. It has not the film quality, the acting, the plot or narrative drive of Land That Time Forgot, which preceded it. McClure is only in this as a token gesture to the original film, which is a shame. The lead chap, Patrick Wayne, is a tad arrogant & stiff, not the most likeable..but there is a reason to go trudging through this. No its not the dinosaurs.
The dinosaurs are a bit thin on the ground and to be honest in this genre of movie, are at the lower end of credible papier-mache or trundling lump of rubber. They are not as good as nostalgia paints them in the minds eye.
However, the reason for watching is perhaps now to observe the qualities, the sheer effort, of Dana Gillespie as the cave-girl, trying to cross volcanic lands, strewn with rubble, crouching, sweating, glistening & even running..without falling out of her cave-girl costume. Lets face it, the costume department were most likely given her measurements, i believe they are 44, and were recommended something for outdoor pursuits, lots of wear and tear. Stunningly she cavorts throughout without leaving her costume. The highlight of the film is catching oneself watching events unfolding, which dont bear much of a synopsis so i wont, and seeing how much Dana Gillespie captures the frame. Exploitation at its best. Film however would fall far short of those that followed as well..