'Twilight' author Stephenie Meyer was noticeably slimmer when she showed up at the handprint and footprint ceremony for stars Kristen Stewart, Robert Pattinson and Taylor Lautner earlier this month. How did she shed the pounds? "Honestly, watching what she eats, and exercise," screenwriter Melissa Rosenberg told the LA Times at the 'Breaking Dawn, Part 1' premiere. "Diet and exercise. And she looks fantastic." She said Meyer (pictured at left in 2008 and at right at the Nov. 14 premiere) "had lost some weight when we filmed the wedding scene together. But then I saw her at the 'Breaking Dawn' junket and just thought, 'Holy smoke.'"