starring: Natalie Portman, Mila Kunis, Vincent Cassel
"The dark tale with psychological twists stars Natalie Portman as Nina, a technically brilliant ballerina whose life takes some strange turns after being picked as the lead in a [NYC] production of Swan Lake. Pressures mount as her overbearing mother (Hershey) pushes her to succeed and her manipulative dance master commands her to be more seductive and loose in her performance. Complicating that is the arrival of Lily (Kunis), a sultry dancer who exhibits all the innate ease and sexuality that Nina lacks. Nina begins to fixate on the newcomer as the two forge an unusual relationship."
I posted these in the other thread but I dont think anybody bothered to check.
I think the title may also be a play on Black Swan theory