The thing I Really like about GOTG is that it could make it easier to get a JJPotc since people might back out of their pre orders and go with GOTG Instead!
I haven't see the GOTG film so I have no attachment to the theme (other than the soundtrack which doesn't seem to be included anyway.)
To be fair I had never seen a POTC film until recently - my interest was piqued after the game reveal. The film did absolutely nothing for me, but I really liked the game play I saw and hope to play a prototype before placing an order.
I like the Star wars films (and even created a star wars spoof film for a client) but the game left me dry.
I guess my point is that the source of the theme isn't as important to me as the execution.