It takes a lot to get Leonardo DiCaprio turned on … so says the actress who had the enviable task of giving Leo a lap dance in ” The Wolf of Wall Street ” … but failed to get a rise out of him. Tracie Jayne — who was cast as a stripper in the movie — says she threw herself into her work … grabbing DiCaprio by the hair … licking his neck … and biting his ear — but wasn’t able to arouse little Leo.