Valley of the Dragons (1961)
Spacemen vs Prehistoric Monsters!!!
They go a million years back in time ... and land a million miles out in space!
Space travelers in a world that time forgot!
Mastodons! Dinosaurs! Flying reptiles! Humankind makes its last stand!
Battle for survival - against brutal, bestial Neanderthals!
Subterranean mole-men inflicting weird tortures on all captives!