Meh, I was not impressed. For one thing, the Indianapolis was hit in the fantail by the kamikaze at Okinawa, not the bow! For another, what's with those shades Nic Cage insists on wearing?! In a documentary about the Indianapolis, I saw home movie footage of Charles McVay aboard one of his ships, and while he is dressed in khaki same as Cage, he is not wearing sunglasses. Cage just has to be Cage, I guess.
The trailer killed my interest in the movie, which, from what I have heard, is nothing special.