Former O.C. star Mischa Barton is coming out on the big screen in Roland Joffe's Russian coming-of-age drama Finding t.A.T.u., reports Variety.

The movie, adapted from the novel t.A.T.u. Come Back by Russian author A. Mitrofanov, follows the story of a lonely American teenager in Moscow who becomes friends with a local girl over their obsession with the gay-for-pay pop band t.A.T.u.

In 2000 t.A.T.u. caused international controversy with their music video single "I've Lost My Mind." The video, which aired on MTV Russia, depicted the band's two female singers dressed as Catholic school girls singing the song and kissing sensually.

With the release of the documentary Anatomiya t.A.T.u. in 2003, it became apparent that the girls' sexuality was a publicity stunt.

The cast also includes Shantel VanSanten, Anton Yelchin, Alex Kaluzhsky, and Helena Mattsson. (The Advocate)