Have you ever thought about why we will readily accept one source of info and not from another? Is it because we already have an inner sense that tells us that one source is not "connected" to real truth? Plus the wisdom to search for truth is given for those who ask?
For instance why would we trust Mike Norris? I don't know him personally, I only know what I have seen through the years through his father Chuck, who seems to be a very balanced individual in his own beliefs and deeds. However I don't know much about the son, except that he is passionate about this movie. So in other words, I don't have much to go on with him. I don't have years and years of info and example to go by. Sometimes the apple does and sometimes it doesn't fall close to the tree.
However, if Chuck is backing him in this project, then I look at it in a more favorable light. Otherwise, I could just say that the "threat" to his life may be just made up to get more people interested in going to see the movie.