What Parents Need to Know
Parents need to know that much swearing (from all ages) and sex talk represents the generally anti-establishment viewpoint of the hero here: an angry, possibly mentally ill teen. Classroom vandalism (apparently committed by the hero under some sort of spell) and profane disrespect of teachers and authority-figure adults is part of the plot, and not exactly frowned upon. There is teen sex (non-explicit), references to pornography, and violent death at the end.
- Families can talk about what in the twisty plot is "real" or not, and whether the "philosophy of time travel" holds up. Could this whole story all be the result of delusional Donnie not taking his medication, as his family complains at the start? Did Donnie ever have control over the events that unfold?