Kristen Stewart and Dakota Fanning aren’t just co-stars in the Twilight Saga movies, the girls also share screen time in the upcoming Runaways biopic. We’ve seen some footage from the film already, but a new UK trailer and film poster for The Runaways have just been revealed, and we think that both are pretty damn cool. And despite Kristen’s not so good Joan Jett hair do, we think that both actresses look way more cool than they do in the Twilight films.