The trailer for Twilight: Eclipse is here. In the above clip, we learn that the third installment of the story will force Kristen Stewart's Bella to choose between the werewolf Jacob Black and vampire Edward Cullen (played by Taylor Lautner and Robert Pattinson, respectively, in case you somehow didn't know). In one scene, Jacob tells Edward: "You have to consider the idea that I might be better for [Bella] than you are." Whether the kids have grown up enough to make such mature relationship decisions is a question that will have to wait for June 30, when Eclipse hits theaters.