Parents need to know that this violent thriller has been targeted more at adults than kids, but some teens will be interested. With the movie's terrorism storyline, it's not surprising that there are explosions, car crashes, fights, and shootings -- which result in burned, bloody, beaten, and drowned bodies. Weapons include knives, guns, bombs, and vehicles. In one scene, scientists and authorities watch voyeuristically as a woman undresses and showers in her apartment. Characters argue loudly and discuss motivations for terrorism alongside religious faith, and in one sad scene, a father grieves his daughter's murder. The language is very tame for a PG-13 film.

Families can talk about the concept of déjà vu: How does it provide a dramatic hook for a movie? What are the characters' different motivations (revenge, self-sacrifice, desire, revulsion, science, faith, etc.)? How do different motivations lead to different results? Families can also discuss the possibilities of time travel. What would you change about your own behavior if you could go back in time? Did you know this movie was about time travel before you saw it? Do you think marketers and producers consciously chose to downplay that angle? Why?