Broken Arrow is another one of the movies in the Internet Archive Top 100 that was ground-breaking. It was one of the first major Westerns to give a sympathetic portrayal of Native Americans. James Stewart starred as an ex-Army man trying to make peace between Indians and settlers.
Based on the novel Blood Brother by Elliott Arnold, the movie was nominated for Best Adapted Screenplay; its author was listed as Michael Blankfort but was actually the blacklisted Albert Maltz. It won a Golden Globe for Best Film Promoting International Understanding. And here it is in all its Technicolor glory for you to enjoy.