GTO: Great Teacher Onizuka (2012)

Inspired by the Japanese anime. Eikichi Onizuka, an ex biker gang leader who is still a virgin, has decided to become the world's greatest teacher... for the purpose of meeting sexy high school girls. But he just found himself teaching a class of delinquents, in a school where everyone tries to find a way to fire him for his bizarre, inappropriate behavior as a teacher.