Director: Kay Cannon Starring: Lesley Mann, John Cena, Ike Barinholtz, Kathryn Newton, Geraldine Viswanathan, Gideon Adlon, Gary Cole, Gina Gershon, Ramona Young Written by: Brian Kehoe and Jim Kehoe Running Time: 102 mins Cert: 15 Release date: 30th March 2018   Blockers come from a long line of teen sex comedies about the youth wanting to…