Continuing my "films about" series. This time the attempt is to compile a list of films about addiction.
There are many types of addiction portrayed in film, from sex addiction to gambling to drug addiction. Drugs are probably the most common and bring immediate thoughts to mind, but the others are just as relevant.
To qualify, a film must be about addiction in one way or another. Not necessarily the main plotline (although that is preferable) but an important/vital point of the movie.
As always, list is in random order.
Add suggestions in the comments!