Teenagers can be seen as scary, unapproachable, intimidating if they go round dressed as in this picture a typical 'gang'.

American movies involving teenagers are normally very sport orientated, because they're still in school and in school teams etc.

Teenagers are often associated with smoking and drugs.

Teenagers are also characters in a lot of horror movies, when a group of friends have decided to take a holiday together or they've been too curious about a superstition which they don't believe is true.