Fans at Comic-Con were treated to a clip of the upcoming final Twilight movie (released in November) of Bella attacking a mountain lion in order to eat it.
Kristen's co-star Elizabeth Reaser (who plays Edward Cullen's mother) was impressed with her acting in that particular scene, saying; 'I haven't seen the movie yet. I didn't think you could pull it off, you eating a mountain lion. But you were so great.'
Kristen added: 'It felt so good to break her in. To see how fast the car goes. I loved the running. That was so much fun.'