As I understand it a lot of people seem to very much dislike the film girl, interrupted. 
Would be fair to say the main character is a 'quiet borderline'. 
If I understand correctly a lot of people just view her as having depression, but from what I am seeing now in the film it certainly does not come across to me as depression that she is experiencing. 
I know we do not see many symptoms in her, or even get a good grasp on who she is ... but when watching the film yourself do you feel any familiarity between her and yourself? do you recognize parts of yourself in her?
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"The Quiet Borderline is often misunderstood and does not present or come across like the classic 'acting out' borderline. The more classic presentation more often than not involves outward raging, projections and 'acting out'. Acting out refers to the fact that many borderlines will act out their pain and visit it on others as opposed to allowing it to rise to a conscious level within, feeling it, and dealing with it internally. Then, there is a presentation or variation of BPD, known as the “Quiet Borderline”. A quiet borderline does not rage outwardly or act out. A quiet borderline does not differ from the more classic or acting out borderline except in the expression of the pathology of BPD. The most notable and main difference between these two 'sub groups' of BPD, if you will, is in the manifestation and presentation - the relational style - and not in the underlying effects of what it means to have BPD."