Does anybody know the title of this movie?

I watched a movie a while back about racial discrimination, but I can't remember the title.

Basically it's about how two young boys (black and white) become friends in the times when racial discrimination was really horrible. The white boy is in some all boy (white) academy singing in a choir and he accidentally hears a black boy (a servant) around his age singing as he was working. So they become friends (secretly of course) and the white boy teaches him everything he learns at the school as they did not let black people go to school there. :( it's a really touching movie and I believe it's based on a novel. At the end the white boy gets sick or smth and arranges so that the black boy would perform his part during the choir concert. Everybody get's really mad, but when they hear the boy sing, everybody realizes that racial discrimination is pointless .

Please let me know if this story rings any titles, as I want to use the movie for Black history month