Kristen Stewart and Dakota Fanning were in LA yesterday for another afternoon of work on The Runaways. They were decked out as their characters Joan Jett and Cherie Currie to shoot scenes around an old car. Dakota got a kick out of something since between takes she was laughing so hard she fell on the ground. The girls have become close on this movie — which calls for them to be especially comfortable together — and with New Moon wrapped up, we can expect more on set bonding when production of Eclipse starts next month.

To see more from the set just