It's Kind of a Funny Story (2010)

A teen checks himself into the psych ward at a local hospital due to depression (girl and family problems). He is placed in the adult ward since the youth one is under renovation. There, he encounters real mental patients and gains a healthier perspective on life.

The film is worth watching just for the dream sequence / music video of Queen's Under Pressure. But it's also a really enjoyable and touching film.

IMDB