Before he went by his real name, Dwayne Johnson, he went by The Rock. Everyone knows that. But did you know that before he was The Rock, Johnson had two other wrestling names? In his earliest days, he was called “Flex Kavana,” and when he later debuted in the WWE, he went by “Rocky Maivia,” combining the names of his wrestler dad (Rocky Johnson) and grandfather (Peter Maivia). A little while later, Johnson adopted a bad guy persona and began referring to himself in third person as simply “The Rock.” And thus a legend was born, and thus that’s just one of the facts featured in the latest episode of You Think You Know Movies!