Imho, having seen Superman II doesn't help, it just shifts the problems the movie has to other points, like the Lois and Clark being much too young for what's happening and Lex being not very movie-Lexy.
Superman Returns looks good, especially Superman. I don't even mind Superman being the real person and "Clark" the disguise. I find both takes on who is the disuguise intriguing and find it more disappointing to find what's essentially "Lois and Clark" stories in disguise in the Superman movie section of archives and vice versa.
But the movie didn't work for me in the story department. It neither works as a sequel to Superman II nor the Donner cut, nor is it capable of standing on it's own feet.
