Mackenzie Foy on Her 'Twilight' Co-Stars

12 year old actress Mackenzie Foy breaks down her half human, half vampire character Renesmee. On her movie parents Kristen Stewart and Robert Pattinson she said, "Kristen is the sweetest person I've ever met and she is always happy and kind of funny, she is just a really cool person. And Rob is funny and silly and I just love being with him."