Courtesy of Sundance Institute The crop of documentaries that premiere at the Sundance Film Festival is always wide-ranging, both in style and in content. And this year’s selections were no exception, even if the 2021 festival was an unusual one, having largely migrated to digital platforms. They ran the gamut from dramatic explorations of refugees’ experiences to funny and heartbreaking looks at American high schools to experimental films about technology’s effects on our lives. The world is a wide, wide place, and documentary filmmakers are committed to exploring it, celebrating it, and warning us not to take it for granted.