Running a brisk 75 minutes, this is one of those rare documentaries that feels too short. Some of its stories could have been more fleshed out, greater historical context could have been provided, and its use of such musical selections as Bob Dylan's "The Times They Are a-Changin'" and Cyndi Lauper's "True Colors" are beyond cliche. But these are small quibbles about a film that should be essential viewing in these times when intolerance is on the rise.