Revealing mistake: When Darian is swinging the pole at Nick near the stairs during the climax, she is so cleanly replaced by a stunt double in two zoomed out shots. The double's face looks absolutely NOTHING like Alicia Silverstone.
Continuity mistake: When Adrian and Amy are talking on the street, the sun is coming from one side of the street when Adrian is shown, and from the other side of the street when Amy is shown.
Deliberate mistake: It's meant to be a joke, but the way the famous punch scene happens is completely ludicrous. Darian appears to be flying in the air toward Nick to attack him, but there is no explanation of how she is doing this, and the way she was thrown back high in the air a few feet is something a punch can never do unless with inhuman strength. There's not any reason whatsoever that both of these things happen, except to give the viewers a laugh. A gun in this case would have made a whole lot more sense.
Revealing mistake: When Darian is swinging the pole at Nick near the end, it's very painfully obvious that it bends as if it is made of rubber or some other similar substance.
Answer: Darian would likely be considered as a depiction of Borderline Personality Disorder. She immediately idealizes Nick, becoming emotionally attached to him, which leads to her wanting him all to herself and becoming jealous of his relationship with Amy. Nick's rejection of Darian's sexual feelings for him and his insistence that they be simple friends is what leads her to her feelings of wanting revenge, while she also has unpredictable short-lived mood swings and unreasonable anger over trivial situations. To top it off, her pettiness and lack of remorse in sabotaging Nick in ways like vandalizing his car, erasing his work, trying to harm Amy and even her closest friend, would be almost certain to lead to a comorbid diagnosis of Antisocial Personality Disorder, especially considering she didn't change in the end, and those with BPD aren't typically violent against others (as media often portrays).
Movielover1996