“10,000 B.C.” star Camilla Belle returns to her Brazilian roots to shoot the Portuguese-language drama “Adrift,” set in the 1980s. The story focuses on a 14-year-old girl who grapples with her life when she learns of the infidelities of her father (Vincent Cassel) while undergoing her own sexual awakening.Belle will play a young woman having an affair with the father.The movie will be released in Brazil in 2009.