I would go to see a movie for $1 without thinking much. If it's a good movie. If it's a bad one, I won't go seeing it even if I'm being paid (unless it's a lot of money). Now how to know if it's good or not is the question. But price is a rather bad signal for this - one has much better ones, like people involved in the production, trailers, reviews, recommendations of people you trust, etc. And it works reasonably well.