The dancer in question is Deborah Dawn. I live in Chicago and was in the Joffrey Nutcracker children's cast for three years and so got to know a fair bit of the company's personalities (I think I had spoken to almost all of the dancers in the film at least once or twice). Anyway, Ms. Dawn's character was something of a caricature in the movie (I read an article about her involvement in the movie a few months before it came out), but the personality wasn't a huge stretch. Because of her seniority and the added fact that she's a really superb dancer, she is very highly esteemed by the artistic staff, and while I agree that she seemed a little more foreward than I would have expected, I've seen her be a bit of a diva at times, so you never know . . .