I've seen it a few times. I enjoy how they weave the music into the story.
I don't think God speaks through everyone you come into contact with for your salvation. Recently was the anniversary of Jonestown. I don't think God was speaking to those people through Jim Jones to drink the kool-aid. I think God may have been speaking to those people to "run like Hell", but they ended up not hearing instead being seduced and fooled into destruction by the demons behind Jones.
Yes...a very costly mistake.
Yet understanding God is in fact most often understanding how he is NOT. For although God in his essence is indeed beyond comprehension, he has been revealed to us in various ways mystically and sacramentally. While we cannot know the God who is (in His essence), we can know the God who does.
Best not get involved with those that do acts that are ungodly and seek from all those acts that are Godly...
I find that this TV program...while only a tv program...maybe illustrating this in very practical terms.