Interesting. I have not see the documentary "Amy", Ive seen trailers, but did see a documentary on BBC/Ch. 5 about her. That documentary basically explains her soul searching started with music and after she fired her managers she lost weight, got tattoos, did the beehive/eyeliner look and found the guy who led her into drinking and drugs. When he went to jail, she could not cope alone. That started her downward spiral ending in her death. I saw it about a week after getting the "borderline personality diagnosis" and maybe I'm biased, but thats what I felt Amy was - a classic borderline. Emptiness, insecure sense of self, self harm/cutting, multiple substance addictions, eating disordered, mood unstable, unstable relationships, angry outbursts, impulsive behavior and in such extreme ways on a daily basis.
Dr. G - did you get any sense she was borderline? As a guess, I know you can only offer a limited opinion since she was not a patient.