Complex sentence: In the film, Oscar-winning French star Marion Cotillard portrays twins of completely opposite characters, Lucie and Marie, and she was nominated for a César Award for Most Promising Actress for her performance.
Split into simpler sentences: In the film, Oscar-winning French star Marion Cotillard portrays twins of completely opposite characters, Lucie and Marie. She was nominated for a César Award for Most Promising Actress for her performance.