Macbook Pro is an amazing laptop, but all machines have their problems. After looking around the forums for a few weeks now I noticed one that caught my eye..
After watching a movie without moving the mouse for a while, and then when I move my mouse or press a key my computer will either show the screen saying that the computer needs to reboot, or the application playing the DVD will freeze and I will not be able to quit it or force quit it.
This problem is usually due to hardware issues and might have to be sent back to Apple for parts replacement. The first thing you should do is call Apple and tell them exactly what the problem is. They would either advise you to go to a local Apple store, or FedEx your macbook pro back to a plant to be replaced. If you are under the 1 year standard warrenty, then you will not incur any charges.
I hope this article has helped you find the solution.