If you're looking for a (short: 10 minutes) movie which Carl Sagan might have applauded, a staunch rebuttal of the "demon-haunted world" -- the Santa Claus view of the universe -- you could do a whole lot worse than watch Tim Minchin's Storm -- The Animated Movie.
It's animated. It's free. It's often extremely funny. Your mom might not approve of some of the language.
We live in a universe that's vast beyond understanding and of beauty that dumbfounds. Why do so many people prefer Bronze Age myths that don't capture the imagination, but kill it?