A selected group of incarcerated men at the Calipatria State maximum-security facility have convened for a highly unlikely workshop. In prison they normally segregate themselves by gang or by race, but here they are all mixed together, sitting in a circle. Over the course of several recurring meetings, the men, many of whom have been imprisoned for serious crimes, will take part in a series of acting exercises that enhance bonding and emotional connection, each session closing with the participants bursting into 45 seconds of unbridled, cleansing laughter. The entire endeavor—part of The Prison Project, a remarkable program conducted by the L.A. theater troupe The Actors’ Gang that has proven to cut down recidivism rates—will climax in a final performance inspired by the Commedia dell’arte tradition. In his contemplative, pared down, and wildly engaging documentary, Dead Man Walking director Tim Robbins—who also appears in the film­­, taking part in the workshop—captures these extraordinary sessions, and introduces us to the individuals fearlessly investigating their own performative natures and the masculine social roles they play.