(1) Sure he can. Until the 1980's, Luthor was 20 years older than Superman and was a fat bald man. So come again?
(2) I never contradicted anything. They can do what they want with their own universe and storyline, because it's their universe and storyline. They could make Luthor 15 if they wanted. It would be stupid, but they could. They don't have to follow everything in the comics like it's set in stone or something. That's the beauty of film making.
(3) Lol and I suppose you could do a better job? Alright, let's hear it. How would you, ZiggyZ, have done a fill length feature film of Superman? Oops, don't forget your plot, character development, plot consistencies, open ended interpretations, etc. Can't forget those.
Let me guess, you're the type that enjoyed The Avengers? The blow em' up movies that throw a couple jokes in the script, blow up a few cars, and don't give a rat's ass about the plot.