Well, well.

We decided to change the plot line/ narrative of out story a little; we had the shots that were originally had him breaking out and then the end being a flashback but it didn't really make very much sense. So we decided to have some sort of perilous event happening, but because reshooting at this point would be impractical we decided that it would be best to play around with the effects.

The end effect reminds me a bit of those videos where you see a nuclear explosion. . . Only without the explosion, then the rewind would be like the whole "life flashing before your eyes" concept you supposedly get when you die.