The theories/explanations as to why Superman doesn't just tear the crap out of things with his hands when he lifts them.
Unless we're in "chill, it's just a movie, man" mode, there's more to Hancock's biggest strength feats than strength. The train thing I could maybe see him using his flight to anchor himself but he would have torn the crap out of that whale with his hands.
Plus there's not a whole lot of definition in what powers he has exactly.
Ooooo yeah, the psionic shield thing that keeps objects from falling apart under their own weight.
Yeah, I could see that.
And apparently his only displayed powers were sonic speed, durability, and strength. Although his wife had some form of weather manipulation, so their full powers are still a mystery.