Because um, I'm not an idiot and I know that Hollywood fictionalizes everything, even their so-called 'based on real events' flicks? But if you've only got 120 minutes to make your point, might as well make it as shiny as possible, right. I don't need to read every book ever written or watch every movie ever made to know that.
God, I mean, just replace Schindler with Band of Brothers - my original example, and Bond with Mission Impossible, and my point still fucking stands.