This movie can be played only on displays that support HDCP (High-bandwidth Digital Content Protection).

Just purchased Yellow Submarine (HD), the new one just released. On a Mac Pro with Apple 30" Cinema Display. Get error message "The selected movie won't play on your Display", This movie can only be played on displays that support HDCP (High-bandwidth Digital Content Protection)."

How the heck am I able to purchase a movie via iTunes on a Mac that a Mac won't play? There's no warnings or anything about it in the iTunes store or anything.