Blockers Parent Guide Another approach to teen birth control. Release date April 6, 2018 Three parents try to stop their daughters from having sex on Prom night. (Studio) Why is Blockers rated R? The MPAA rated Blockers R for crude and sexual content, and language throughout, drug content, teen partying, and some graphic nudity. News About "Blockers" Cast and Crew Blockers is directed by Kay Cannon and stars Kathryn Newton, Leslie Mann, John Cena.