The timing couldn't be more fortuitous for the release of Mary Mazzio's uplifting documentary about the nation's first African American high school rowing team, which feels almost like a tonic for these troubled times. Narrated by Common and including NBA greats Grant Hill and Dwyane Wade among its executive producers, A Most Beautiful Thing, scheduled to open in theaters, powerfully demonstrates the healing potential of sports and the ways it can help bridge societal divides.