Hypableand Kaleb Nation spoke to The Twilight Saga screenwriter Melissa Rosenberg at the premiere of Breaking Dawn – Part 2 in Los Angeles. Rosenberg is probably one of the most in-the-know people of the Saga, given she wrote all five films. With the story now complete, we wanted to know which of the films was her favorite. “This is my favorite, because it was the most fun to write. It has t…