From a whole new perspective

What if instead of ruining Peter's life, that night of many years before, Jerry would have saved his life?
How would this affect the whole development of the movie?
If you want to see a very different Peter, check this out.
Jerry/Peter (not in the prologue, of course, for reasons!!) , but... maybe keep an eye on Charlie, too ;P
warning: delicate issues, probably it's not everyone's cup of tea...