Just watched the movie "Hot Tub Time Machine".  Hmmm.  Aside from the potty humor and excessive naughty bits, the movie offers the standard "rewind your life and start over, except do it better this time" plot.   Sooooo....here's the deal.  If you have a true relationship with Christ, I mean like you're sitting in a jail cell in a communist country and are at peace kind of relationship with Christ, there is simply no need to ever rewind and do it better, cause things really can't get any better from that point.  So in the end, I think that the movie was just another attempt by the world to do what only Christ can, which is set things right and to the point where you never want to "go back".