Is there a more recognizable theme than the Superman theme? John Williams knocked another one out of the park in 1978 for the original Superman film, and then was fired from the franchise in the Richard Donner purge. And yet his themes appeared in the next 3 films in that franchise. And it, and the Lois Lane love theme, are back in "Superman Returns", even though he does not get credited with "music".
If anyone deserves a Superman lovechild it's John Williams. He's been getting screwed by Superman for 26 years.
That aside, this film is surprisingly better than critics would have you believe. Routh does a decent Christopher Reeve imitation, and depth is provided by the love triangle (quadrilateral, if you throw in Clark Kent), and the Christ analogy (as Marlon Brando wheezes, "I sent them my only son", we see Superman floating high above the earth, arms outstretched, listening as the world pleas for a savior). The plot itself is no more or less than what we would expect, with the evil real estate agent Lex Luthor on the loose.