Gina Gershon got in shape for 1996 movie BOUND by beating up rock legend Bob Dylan in the gym.
The actress's trainer introduced her to Dylan, who is a longtime closet boxer, and the pair slugged it out every Thursday until Gershon was ready to star in the raunchy movie.
And she reveals she had the upper hand on the then-55-year-old singer/songwriter: "He's small. We're the same size. And we agreed not to hit each other in the face.
"Right off, Bob pops a hard one straight onto my nose. I charged back and caught him on the jaw. He went down like he was out cold. But, as he lay there, he said, `Just what I need. A good woman to kick my butt.'"