About that 'acting' by the real crew...
In a user review posted on 15 December 2000, there is this comment:
"To this day I wonder which, if any, sailors and Marines I saw were actual service people."
I can tell you buddy, that from the moment the movie shifts to onboard the Nimitz, just about every spoken line that is delivered a half-beat off or with the emotional stress on the wrong word is spoken by a regular crew member.
God love our service people and I'm glad they gave real fighting men some screen time instead of hiring extras, but every time one of them spoke, it just lowered the acting quality of the movie and snapped the suspension of disbelief.
Probably the worst "acting" job of all was the non-verbal ones done by the various group shots of crew members everywhere listening to the broadcast climatic pre-battle address by the captain. During many of those group scenes (the officers in their briefing room, the general crew in the mess hall [if that's the right term]), the non-chalance and bored posture and expressions certainly didn't fit what you would expect from the crew on the very verge of battle - especially being told that they had time-warped back 38 years to fight the battle of Pearl Harbor! You would have thought that guy eating in the mess hall on the left would have stopped eating for a second or two. (Some of the expressions in the shots of individuals during that speech I thought were very good, though.)