Watch Howard Zinn: You Can't Be Neutral on a Moving Train (2004) : Full Movie Online Free You Can't Be Neutral documents the life and times of the historian, activist and author of the best selling classic "A People's History of the United States". Featuring rare archival materials, interviews with Howard Zinn as well as colleagues and friends including Noam Chomsky, Marian Wright Edelman, Daniel Ellsberg, Tom Hayden and Alice Walker.