For starters, it needs to be leaner. He doesn't need to sleep with the kid's mom, that's about 6 minutes that should have been on the cutting room floor. There's no need to show him in love with that prostitute at the beginning, get rid of all of that.

The movie is so derivative of so many other movies, which would be fine if it did interesting things. The telekinesis I don't like, the quiet family he falls in love with in farm country I don't like, and I hate suicide being the solution to everything. When Willis started killing everybody like a superhero, I thought "'one man did it by himself' - maybe he's actually the Rainmaker?" That would have been interesting. There were any number of possible resolutions far more interesting than what happened, which was basically THE most standard and derivative possible ending.

I don't ever again want to see a male character being rehabilitated by a kind single mother and her kid who all wind up falling for each other. Come on.

And yea, after Gordon-Levitt's suicide everything should have basically gone back to normal. There should now have been no incidents at the farmhouse.