We all know what it's like to be sitting on the edge of your seat during a particular scene, just waiting to see how our favorite character was going to get out of the life-or-death situation. It's nerve-wracking, but we can always take a breather and remember that they were never in any real danger. But that's not always the case. Here are some of the most famous scenes that almost cost stars their lives, but were kept in anyways!Back To The Future: Part 3CheatSheetDid you find yourself short of breath while watching this scene? So did Michael J.