How do you play Blu-ray disc on ps3?

Set up the PS3 to work and turn on your TV and PS3. Place the DVD into the game slot. Pick up your controller and use the keys to move down to the spot that looks like a piece of film. Below that spot will be a disc, go to it and use your X key to start the DVD loading. When the disc finishes the Promos you will have to hit the X again to play the movie after the controller has been used to move highlighted area over the Word play.