How about Courtney Love
Surprisingly, there is not topic here about Courtney Love in this movie. You know, she had a small part in Sid and Nancy movie playing Nancy's friend. But she herself wanted to play Nancy. I think she would have been perfect as Nancy. I have nothing against the actress who played Nancy but I kind of feel like Courtney would have been a better choice. Yes, she had no acting experience at the time but her own life story and even her looks bear such similarity to actual Nancy.
How do you feel?