Why the world needs Superman
Well, its official (atleast from our side), this movie is brilliant and you can check out our review at S-A-M.
We suggest that you see this movie and dont bother seeing it in an Imax threatre. Superman Returns lives up to its hype and I can’t imagine Bryan Singer not making a sequel as he has the Superman formula right and he knows what the audience wants out of a Superman movie.
Just a piece of advice though, if you are planning on seeing this movie in the next few weeks, make sure you are atleast an hour and a half early as we learned it the hard way 
We were sitting on the very first row (closest to the screen).