Question: Which 2006 documentary film tells the stories of three Jehovah's witnesses who, amongst other Witness teachings, claim the right to refuse to perform military service on the grounds of freedom of religion?
Sentence (from "Knocking (film)"): It focuses primarily on the stories of three Jehovah's Witnesses, and how their lives demonstrate three fundamental Witness teachings that have affected society in general: Conscientious objection, and rejection of blood transfusions and saluting the flag.
Relevant evidence: Yes