This is a really cool movie, similiar in thought to "The Secret" but with actual actors and a plot incorporated into the theories about spirituality, God, quantum physics, and science.  There are many various interesting experts in "What the Bleep Do We Know" from the most spiritual to the most scientific of experts.  The movie is kind of a prequel to "The Secret" and also features a few of the same people in both movies (the quantum physics scientist, and another guy - I can't remember his name).  If you like "The Secret" you will likely enjoy "What the Bleep Do We Know" - it has more science and also more comedy, but presents the same theories in different ways.  I highly recommend both movies, and it doesn't feel like that much overlap even though they both support each other.