Kristen Stewart: Smooching Dakota Fanning Was 'Cool'

Kristen Stewart has never had a problem getting close with her costars. She’s been romantically linked with Twilight’s Robert Pattinson, is great pals with Taylor Launter and has formed a bond with Dakota Fanning, who stars in The Runaways with her.

PHOTO: Kristen Stewart Rocks Out as Joan Jett

She’s revealed a glamorous side recently during London Fashion Week, but PEOPLE.com has a first look at Kristen Stewart channeling her inner rocker – Joan Jett, to be precise – in her upcoming movie, The Runaways.

In the scene, Stewart rocks out in her bedroom after her band, the Runways, breaks up.

The movie, which arrives in theaters on March 19, is a coming of age story about the all-girl rock group. It also stars Dakota Fanning, who plays Cherie Currie.