User blog comment:VampiresAndWerewolfsareAwesomeAsHell23/Honeymoon Scene and wedding scene/@comment-3984470-20120111052709

Ooookay, so I'm guessing the gif is of Kristen saying either, "That's what happens in the new movie," or "That's what happens in New Moon" (she's on the set of New Moon in that gif [look at her shirt and her hair]).