Do you trust your mate? How far will you go? Julianne Moore plays a wife who believes her husband (Liam Neeson), a teacher, is dating a student. She hires Chloe (Amanda Seyfried), a call girl, to test her spouse's fidelity. Directed by Atom Egoyan ("Where the Truth Lies"). Erin Cressida Wilson ("Fur") adapts a French movie.