Elle Fanning will play a young British rebel in 'Bomb'.

The 13-year-old actress will star with Alice Englert in the forthcoming movie, which is set in London in the early 960s and follows two teenagers at the forefront of political and social change.

Elle's character, 16-year-old Ginger, is described as the "brainy" pal to Alice's Rosa, who is more interested in boys than her friend's desire to get involved with the anti-nuclear campaign.

Director Sally Potter told the Daily Mail newspaper: "[Elle has] subtlety and range beyond her years. She can move you to tears, then light up the room with her radiant smile.

"Alice is a beautiful, intelligent young woman with the movies in her bones. Together, playing teenage rebels, they are sure to be a pair of firecrackers."

Sally and producer Christopher Sheppard had originally used social networking website Facebook to invite actresses to audition, with 1,500 sending in videos of themselves.

The team met 30 of the hopefuls but cast the lead roles in the traditional way.

Shooting on 'Bomb' is scheduled to begin in February 2012.