Can't play Harry Potter - AUGH!

I’ve got my mitts on a fresh copy of Harry Potter and the Deathly Hallows, Pt 2, and my Blu Ray player refuses to have anything to do with it.

After a bit of spinning, it pops up a message that it can’t load the disc. I checked the player’s firmware, and it’s current. The special features disc plays OK.

Think I’ve got a bad disc or a cranky player?