Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Victory over Racism,

A very impressive film based on real events about the uneven partnership of black cardiac pioneer Vivien Thomas and white heart surgeon Alfred Blalock, who in the 1950es pioneered successful heart surgery for "Blued Babies". United in the Johns Hopkins medical labs, privately their lives were strictly separated, due to the racism common in the 1950s; this led to the peculiar circumstance of Thomas serving drinks to people he had been teaching earlier in the day. Only in 1969 did Johns Hopkins officially recognize Thomas's achievements and hang his portrait next to that of Blalock, and in 1976 awarded him an honorary doctoral degree in acknowledgement of his decades of training Johns Hopkins surgeons. The movie makes the conflicts and triumphs of these yeatrs come alive and justififedly received a good nuimber of awards.