Kristen Stewart & Dakota Fanning 'Runaway'

Kristen Stewart follows costar Dakota Fanning as they leave a studio in Los Angeles on Monday afternoon (June 8).

Dakota, 15, seems to have her arms full with papers while Kristen, 19, looks a little weary after rehearsals.

The duo star in The Runaways, the biopic about the 1970s teenage band of the same name. Actress Stella Maeve was just cast as drummer Sandy West.

The Runaways is set to hit theaters in 2010.