Ok, lets say some how, some way, another super hero gets the upper hand in a fight with Superman (which I find hard to believe), all Superman has to do is fly up into the upper atmosphere, spin around the earth a few hundred times at crazy speed (like in the movie) and turn back time. Then, he replans his strategy and fights again.
I often wonder why he doesn't do this more often. Sometimes I think maybe I watch too many movies, and that was just a typical Hollywood over-the-top exaggeration, and actually Superman can not turn back time in real life.