One of the unnecessary changes to the Star Wars is the Greedo shoots first change. Aside from who shoots first and what does that to the character, the main problem to the scene is that it looks lame. Unfortunately the 2004 Edition of the movie doesn’t resolve this and the best looking solution is how it already was in the original version. It simply didn’t need any changes. Here is an excellent short story about this that I have recently found.
An amusing comic, though I doubt it’ll be posted long due to Copyright infringement. Read it while you can.