Hmm movie won't play?

[munkin65]

I recently got the latest "Pirates" movie, and after the first 10 minutes of ads I got a bit frustrated and clicked to Menu.

The Menu screen for this movie has a talking skull in the center with "Play Movie" to the left and "Total Menus" to the right. The skull talks, I click "Play Movie", there's a pause..., the screen refreshes (sans the two options) then the music starts up and the skull animation starts again. After several minutes of this (and listening to the skull repeat itself) I finally eject the movie and start again. And again. And again. The movie itself will not start. The ungodly amount of ads at the beginning DO play over and over - each time its inserted - but clicking "play movie" just basically gains me a screen fresh.

Am I doing something wrong or does this sound like a bad disk?