Before I start to turn negative, I want to establish that there are 
      things I like very much about Gettysburg. Despite its length (more than four 
      hours), I watched it through in a straight shot except for pauses to read Wikipedia, and I am not known as a patient man, so you know it 
      has an interesting running narrative.
      I especially liked the middle third of the film, which features Jeff 
      Daniels delivering the performance of his lifetime as Col. Joshua 
      Chamberlain, the classics teacher who volunteered for the Union army 
      because he was an idealist who believed in the Northern cause. Chamberlain 
      and his Maine volunteers pulled off an almost unbelievable defense of the 
      Union's left flank at Little Round Top, capped by a remarkable and 
      improbably successful bayonet charge which they made out of desperation 
      when they ran out of ammunition. This surprise tactic was a hell of a 
      piece of soldiering, both courageous and brilliant, and it came from a 
      professor of rhetoric and religion, not a West Point grad.
      I liked many other things about the film as well. I appreciate that it 
      was played out on the actual Gettysburg battle site, which has been 
      preserved in virtually its original condition, and I appreciate that the 
      film was made by consulting with many scholars, and that all of the extras 
      were played by experienced Civil War re-enactors, who provided authentic 
      clothing and weaponry.
      There are flaws as well. Since I'm not a Civil War buff, I would have 
      appreciated more graphics to show me precisely how the tactics were 
      intended to work, and I would have really appreciated it if some of the 
      fictional speechifyin' had been toned down. Despite those quibbles, I can 
      say that Gettysburg is a stirring and realistic film. The Chamberlain 
      third, if considered on its own, would be an unqualified masterpiece.
      But there is a great flaw in the center of it, and that is an 
      important one: Martin Sheen plays Robert E. Lee as a dotty, diminutive, 
      illogical old fool who rode his tiny horse clumsily and  never found 
      a hat that fit him properly.
      It is true that Lee made an incomprehensibly poor tactical decision in 
      ordering Pickett's Charge on the final day of battle. He sent 13-15,000 men to march uphill into an 
      open field in the face of Union artillery and sharpshooters who not only 
      held the high ground, but were protected by entrenched positions. 
      Furthermore, he ordered that assault after his right hand man, Longstreet, 
      told him it was a suicide mission, using these words:
      "General, I have been a soldier all my 
      life. I have been with soldiers engaged in fights by couples, by squads, 
      companies, regiments, divisions, and armies, and should know, as well as 
      any one, what soldiers can do. It is my opinion that no fifteen thousand 
      men ever arrayed for battle can take that position."
      The results demonstrated that Longstreet was right. More than half of the 
      Confederate troops were shot or captured, and just about all of the 
      generals and colonels were lost. But Lee knew it would be an extremely 
      difficult task and there were good reasons why he ordered it anyway. It's 
      worthwhile to remember that if Lee had followed Longstreet's advice, he 
      would have gained significant short-term advantages, but would almost 
      certainly have lost the war anyway. Unlike General Longstreet, Lee was 
      focused not on tactical gain, but on long-term strategic and political 
      objectives. He knew that a decisive Rebel victory at Gettysburg could well 
      prompt European intervention, and might well cause the Union to sue for 
      peace, and if he could soundly defeat the Army of the Potomac at 
      Gettysburg, he was prepared to march directly to a virtually undefended 
      Washington, not with an assault, but with peace offered from strength.
      Lee knew that a series of tactical victories would not bring about 
      peace, but would only prolong war. He was not a fool. He knew of the 
      Northern advantages in industrial output and manpower, and he knew that a 
      loss at Gettysburg, or even an inconclusive victory, would mean a long and 
      drawn-out war that he was probably bound to lose. He wanted and needed a 
      crushing victory at Gettysburg to secure his overall objectives, and the 
      only way to get that was to split the Northern army, which would have 
      allowed him to win in a rout. He felt that Pickett's Charge was his one 
      chance to do that, so he opted for a high risk strategy with a potential 
      high reward. He had pulled off similar upsets in the past, and in fact the 
      entire assault on Pennsylvania was based on a comparable gamble. Like 
      Joshua Chamberlain at Little Round Top, Lee knew what he had to do, stayed 
      focused on it, and rolled the dice when he felt there was no other good 
      option. The only difference between the two surprising strategies is that 
      one worked and the other failed.
      The film doesn't really capture the essence or the magnitude of Lee's 
      pragmatic calculation. Instead it portrays Lee as some kind of a mystic 
      who thought that Pickett's Charge would surely have to succeed because he 
      had an 
      unjustified faith in his troops, whose subsequent defeat turned him into a doddering, 
      blubbering senile coot.
      That portrayal spoils the film for me.