It happens to me as well, with the movie thing. It also happens to me that when my iPod is on shuffle (21Gigs of ****ing music) and I think of a song I want to hear next, with few exceptions, it always comes on. I have read in a couple of books that this is because the human mind is almost imperceptibly able to affect the outcome of random...izers.
"Randomizers" being the only way I can describe what was mentioned in the books.