The flight scenes are realistic sometimes but others times quite unrealistic which I believe is meant to pander to the younger generation. Truth is the primary thing the younger generation needs is not air battles where pilots are skimming the water to the point their propellers would be a quarter in the water but a real understanding that war isn't glamorous but brutal and just horrible. I believe they tried to display this but it got lost in the action.
The movie for telling historical events and trying to bring the lesser known people who sacrificed so much for our freedoms to the foreground is worth it.
As for critics who I've read some of there reviews like "all the explosions are for the gamers" while some explosions are a little much in a few spots others are a little under played but the truth is unless you plan to fill a old aircraft carrier with low lead 100 (aircraft fuel used in planes now) and ignite it to see what it's like then all you have to go off of is talking to the people who lived it and war footage. War footage shows some pretty big explosions and fireballs and news flash they weren't filming an action movie in the Pacific in the early to mid 1940's and war isn't a bunch of soldiers bowling and having drinks. So if you going to talk about blah blah big explosions well try actually watching real war footage and hell maybe try even walking in the middle of a war zone and see how those explosions seem to you...of course I'd expect that you probably won't notice to much cowering in a hole pissing yourself, go talk to the few that remain from a horrible world event and become educated before acting like you know how it is.