My favorite film: Suicide Room. 

Starring: Dominik Santorski - Jakub Gierszal, Sylwia - Roma Gasiorowska
This is my favorite film because of the story and characters. 

Suicide room is a 2011 Polish dramatic film directed by Jan Komasa. The film centers around Dominik Santorski, a sensitive and lost teenager, who is the son of wealthy, success-driven parents. 

Dominik begins to have problems with homosexuality. He has a depression and locks in his room. All of his time he spends on the social network. On this social network he met Sylwia. His parents want to help him, but he want to die. In the end of this story Dominik commited a suicide. Sylwia went out of her bedroom after three months and started crying about Dominik.