Spiritually and visually luminous, Greg Kwedar’s Sing Sing is one of the year’s most powerful works. The movie follows a theater production at a New York prison arts program, and is for all intents and purposes a dramatization — but it remains so closely tethered to reality that it may as well be docufiction. Rustin Academy Award-nominee Colman Domingo leads an impeccable cast, many of whom were formerly incarcerated and play versions of themselves, in a tale of learning to "trust the process" of performing.