For One Night (2006)

Their town always had two proms, one for the whites and one for the blacks. When both proms wanted the same DJ, Brianna McCallister suggested combining the proms, which would also mean more money for decorations. However, her idea shook the town up, especially after a white student was let off for the same offense that a black student was suspended for. Can the town overcome racial tensions and finally combine the two proms?