What's the difference between DI and POTC in regard to voices, music, and movie clips? Oh that's right DI has no movie clips. If we can get over the POTC title and accept it as a pirate theme, its a fantastic game. The lack of movie clips will likely make the game more timeless, especially since Disney is now looking to reboot the franchise. Having played each JJP game, I can easily say that my favorite is POTC, followed by WOZ, then DI, and lastly Hobbit, which is filled with movie assets. With WOZ, its not the movie clips that makes the game fun to me, its the game features and lighting. The only thing that holds back DI for me is the playschool toys that look like they came out of a three year old's toy box. I've cooled down over the theme and the game itself shoots great. I know I'll get some thumbs down from the DI champions out there, but so be it.
My point is that the movie assets is the least important factor for me. Now if this was a theme that was super important to me, like SW, then that would take a few steps up, but I really have a neutral appeal to POTC. I've watched each movie once and that was plenty.