The actress was thrilled to find courts next to the location chosen for the outer-space prison thriller - and she had a few history lessons while she was serving and smashing.
She tells BlogTalkRadio.com, "On Sundays I took tennis lessons and it was at these crazy Roman ruins and there was a moat around it. They turned them into clay tennis courts.
"Supposedly Vlad The Impaler (the tyrant who inspired Dracula) is buried under there and it was crazy that I was playing tennis there! What an amazing way to be introduced to something."