i have a friend whose dad was stationed at pearl harbor during the filming. there is a scene with a lot of smoke in the background. turns out they needed to hide the distinctive silhouette of CVN-65 ENTERPRISE which was in for repairs after the hanger fire on yankee station.
Sigh...and now USS Enterprise (CVN-65) has gone to the scrap yard to become razor blades. If there was one ship that should have been preserved, it was Enterprise. We could have used its functioning nuke reactors to supply electrical power to the grid.