Watch a quick flash to the now-infamous birth scene from this 'Breaking Dawn - Part 1' trailer:
Bella experiences both extreme bliss and extreme pain in "The Twilight Saga: Breaking Dawn - Part 1." The film starts with a joyous wedding, and Bella is caught several times grinning from ear to ear. But later in the film, she is overwrought and in pain as she gives birth to an over-sized, fast-growing half-vampire baby who has been literally sucking the life out of her. This may mark one of Bella's most extreme facial expressions to date.