ET went behind the scenes of Ashley's photo shoot for Teen Prom magazine, where the actress dished about her rigorous fight and stunt training for 'Eclipse.'<br /><br />"I was excited about the photo shoot. I wasn't too nervous, I've been in a prom dress before," said Ashley, looking glamorous in a strapless, floor-length purple gown.<br /><br />"I'm trying to convince them to let me take the dress so I can go out in it," she giggled, "but I don't think it's going to happen."<br /><br />Ashley, whose Teen Prom issue hits newsstands Dec. 22, also showed off a bruise on her arm (rendered practically invisible with makeup) that she sustained while training for the eagerly awaited third 'Twilight' film, 'Eclipse.'<br /><br />"Until I had to shoot in prom dresses, I didn't get any bruises. I was doing really well," she smiled. "It's horrible, but it's been really fun. [Our moves] will look really, really good by the time we finally get to the fight sequence because in 'Eclipse' ... we have to fight this new-born vampire army."
