The Fantastic Four (1967)

After coming back from vacation Reed tells Ben an interesting theory on attempting to restore him. They head to Dr. Doom's deserted castle to use the time machine the doctor left behind. In 2000 B.C the four weaken during a fight and are taken by Pharaoh Rama-Tut. Susan is to be Rama-Tut's queen while the other three are put to work with some mind control. Ben turns back to his former self. As he rescues Susan he is once again the Thing. The four battle Rama-Tut to his sphinx. Finally they destroy his sphinx and return to their own time.