If you don't mind your war films cliched, confused and riddled with historical error, then Pearl Harbor might well be one for you. If not, then steer well clear. It's hard to know where to start with Michael Bay's over-the-top presentation of the Japanese assault on the US fleet in 1941. The acting is dire, on the most part - Harnett and Affleck should stick to comedies, and Beckinsale has little more to do than to look wistful in most scenes. Historical accuracy has been thrown out of the window - painting the Japanese Zeroes green for example, presumably to help the audience distinguish between good guys and bad ones.
The film presents a sanitised, spotless view of American society, ignoring the institutional racism of the time - Cuba Gooding Jr's race, in playing Doris Miller, is virtually all but ignored and much more made of his status as 'cook' - and the Japanese are presented as honorable and conflicted with little reference (beyond the use of the word 'Jap', and the single scene in which a soldier asks not to be treated by an Asian doctor) to the significant and violent anti-Japanese sentiment which quickly engulfed America in the aftermath of the attack. It was only a few months later that "We're Gonna Have To Slap The Dirty Little Jap" was being played on US radio, after all.
It's a shame that the Doolittle raid is presented without the slightest critism, with Jon Voight - in a cringworthy perfoprmance as Roosevelt - managing to persuade his sceptical generals that a raid on Tokyo should happen by comparing their reservations to his conquering of his own mobility problems. Doolittle achieved an objective - to increase US morale and therefore support for conflict - but it did so at an incredible cost. Not just the 6 crewmen who died, but the estimated 250,000 Chinese who lost their lives in Japanese reprisals. In fact, Doolittle himself believed he would be courtmartialed as a result of the mission's failures but instead found himself in receipt of the Medal Of Honor; while calls for Doris Miller to receive the same award fell on deaf ears despite a groundswell of Navy support. Obviously for Bay to attempt to address these issues would have meant sacrificing the amount of screen time devoted to the watery and unbelivable love triangle between Hartnett, Affleck and Beckinsale; still, as others have pointed out here there is a worthy alternative in 1970's "Tora! Tora! Tora!" - a film which undoubtedly has its share of flaws, but also respect for the history it is attempting to represent.