Parents Guide for
Die Welle (2008) More at IMDbPro »

A teenager simulates having an ejaculation in a vulgar way, by spitting water out of his mouth after rubbing a bottle (most children under 13 or 14 years won't get this joke). Some sexual terms.

Children are bullied because they don't want to be part of the school project. Some scenes of teenagers fighting (not very violent). A teenager commits suicide by shooting himself in the mouth. You see him putting the gun in his mouth and pulling the trigger, but not the actual shot. Some blood is seen.

Some profanities, but neither strong nor very frequent.

Adolescents are seen drinking, some adults smoke. Not graphic.

The second half of the film is very dark. Children and teenagers are bullied, many pupils are part of an almost fascist school project and stand for their principles with violence and bullying. An adolescent commits suicide by shooting himself in the mouth. This scene is quite intense because one expects a different ending. Many policemen evacuate the school and arrest the teacher . This scene is very dark.