Most racist American film since The Birth of a Nation (80 years earlier)
In the context of the movie: when a white man calls a young black woman a "black bitch" on the phone, it's a far worse thing than a young white woman being raped by some white frat guy jerk.
And that same white guy who insulted the black woman refers to black on white racism as reverse racism, that's completely ridiculous. It's still racism no matter who is being racist whether that person is a minority or not. Reverse racism would be tolerance.
My vote history: http://us.imdb.com/mymovies/list?l=9354248