I'm trying to remember the name of a film I saw years ago. I THINK it was an Italian film, and made in the late '60s. In it, aliens are planning to resurrect the classic monsters as part of a plan to take over the Earth. The only scene I really remember is at a carnival where the sideshow is displaying Dracula's staked skeleton. After the crowd leaves a hand pulls the stake out, and you can see the organs regrow; complete with beating heart.
What film am I thinking of?