I just received a notification that Heavy Rain is on sale today for $39.99, a savings of 33% from its current MSRP. The version on sale is the version that is Sony Move compatible, so no need to worry if you were concerned with that.
If you are a PS3 owner, and have been waiting on a price-drop on Heavy Rain, now may be a good time to pick the game up.
Amazon.com has Heavy Rain as its, "Deal of the Day", so it will be available for $39.99, as long as it stays in-stock.
If you are interested in Heavy Rain, you can see it linked to its Amazon.com page directly below, or any of the links above should take you directly to it.