To Write Love On Her Arm (2012)

This is a movie about substance abuse and the insidious hold that it has on people, and the things that people will do to help them.  It is also about compassion, risk, and what people will give up in order to get high again.
The story is about Renee Yohe, a teen whose troubled psyche, substance abuse and self-injury inspired an online support system for those like her — especially those so troubled they repeatedly cut themselves.  Kat Dennings plays her — a music-obsessed Florida teen when her troubles began — with a coy confidence.
Pale and dark, hiding behind her hoodie and her headphones, Renee at least has a support system, but a support system’s only supportive when they’re around, and Renee abandoned them for cocaine, ecstasy, the works.
The story revolves around the pull of relapsing, no matter how long it has been since last use, the ruthlessness of those who deal drugs, the risks of what you give up when you surrender to going back down that road.  Realistic and hard.