"If you're interested in watching a movie featuring depression, it can be difficult to know where to start. There are hundreds of movies about depression, and thousands with strong themes of depression.
Rather than starting a subjective conversation about which movies are "best" in terms of the filmmaking (good writing, interesting characters, solid plot, etc.), we wanted to learn which ones would best enlighten you on the experience of depression. If you live with depression, you might identify with one or more of the characters in these films or they might provide your family and friends some insight into what you're struggling with.
To narrow the list, we surveyed our network of more than 1,000 therapists and tracked which movies they recommended most frequently. These films focus on the nature of depression itself: what it is, how it develops, and how it affects both people who have it and those around them." - talkspace.com