When these three actors had their heart broken, it turned them into a star. Puny Taylor Lautner packed on 30 pounds of muscle to play a lovesick werewolf in the "Twilight" movies. Holding a boom box over his head in "Say Anything" ...See moreWhen these three actors had their heart broken, it turned them into a star. Puny Taylor Lautner packed on 30 pounds of muscle to play a lovesick werewolf in the "Twilight" movies. Holding a boom box over his head in "Say Anything" redefined John Cusack's career. And indie hero Joseph Gordon-Levitt hit the mainstream when he showed a softer side in "500 Days of Summer." Written by
Jason Lewis
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