The worst aspect of "Pearl Harbor" for me (other than the unoriginality, poor script, bad acting, and fact that the movie wasn't really about the attack), was the fact that the two leading actors, portraying fictional characters, are shown waking up after a late night of partying, taking off in P-40 Warhawks from Haleiwa airfield, and shooting down several Japanese planes.
In real life, there were pilots who actually did this, Lieutenants Ken Taylor and George Welch. Their heroic deeds were basically given to fictional characters, and I believe Taylor was still alive when the movie came out. Talk about being disrespectful to veterans!