Eventually Thor saved Hercules from the Netherworld, which the Olympian demigod had been tricked into agreeing to rule. The pair would continue to have a tumultuous rivalry, with Hercules at one point attempting to woo Jane Foster. Introducing Hercules in a Thor movie makes sense given the fact that the hero first appeared in the 1965 comic Journey Into Mysteries Annual #1 where he squared off against Thor.
