My wife and I really enjoyed watching the Indian movie Rang de Basanti. It chronicles how a group of lazy and cynical students at Delhi University become radicalised when they are recruited to act in a documentary about Indian revolutionaries from the 1930s including Bhagat Singh. The movie repeatedly features disturbing depictions of the Jallianwala Bagh massacre, where British soldiers killed hundreds of unarmed Indians.
We also found the ending rather disturbing, but that is some of the point.
Wikipedia describes how the movie has inspired increased political activism in India, particularly among young people.