Sundance says: "During the 1960s, a tight-knit group of progressive nuns in Hollywood discarded their habits and gleefully oversaw a radical women’s college grounded in social activism. Spearheaded by sisters Anita Caspary, Helen Kelley, and Corita Kent (also a renowned pop artist), Immaculate Heart College ensured women received degrees at an unprecedented rate and crested a tidal wave of social change that engulfed the nation. But as the nuns marched on Selma and transformed the education system, they incurred the wrath of the archbishop of Los Angeles and, with him, the church’s entrenched old guard.

With a mixture of defiance and joy, Rebel Hearts reveals one of the biggest religious showdowns of the twentieth century, which pitted a delightfully noncomforming group of feminist nuns against a powerful patriarchy insistent on female subservience. Pedro Kos’s euphoric and essential documentary reveals a groundbreaking sisterhood that not only flipped the bird—politely—at the Catholic Church’s brazen misogyny but, through their teachings, fundamentally reshaped American society."