GodisaGeek: "Prequels are always tricky to get right. Typically, the most exciting events in any franchise’s chronology happen in the bit you’ve already seen – otherwise, what’s the point? So when crafting a sequel, you have to ensure that not only is the story you’re telling exciting and engaging, but that it ties into events already established in a meaningful and coherent way. If you get it wrong, the least you’ll do is piss off the fans; the worst you’ll do is discredit the entire franchise.
Take the Star Wars prequels. By their own right, they’re not awful films. The CGI is crusty and some of the characters (and casting choices) are ridiculous, but the biggest problem is that in order to brutally pummel the story into a workable prequel and connect it to the beloved originals, the writers had to take huge liberties with the established canon and leave enormous plot-holes that will never be filled. Why couldn’t Vader find Luke and Leia in the 17 years between Episodes III and IV, why did Luke’s twin sister look roughly ten years older than him and share not a single physical similarity, why did Obi Wan degrade so fast from somersaulting, wise-cracking badass into a wizened old hermit?"