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Kate Winslet, Leonardo DiCaprio

Kevin Winter/Getty Images

"Absolutely Kate! Not even a question. She's such a badass. Not a doubt in my mind."

Revolutionary Road costar Katherine Hahn when we asked which half of the constantly fighting onscreen couple Leonardo DiCaprio and Kate Winslet would win an arm-wrestling contest. We're so not surprised, as Titanic's Rose coulda clobbered Jack in seconds flat. Beef it up, DiCaprio!