1st. Superman gets the girl, not cyclops. Stay in your own movie.
2nd. Lexcorp. Swindling some old woman out of her money IS all lex needed to do to get his cut in this whole film. Building the land was just extra and really didn't seem necessary nor make much sense (what do they eat, is there plumbing in krypto-island, where's the water, we need water you know, not to mention while that island's growing, the armies of the world would blow lex to hell). If he used the technology to build stuff in lexcorp like you said, that'd have been brilliant.
3rd. No superboy. no piano launching. no cutesy kid moments to endear him to the audience so they think he's a great addition. No sale here. he'll grow up to become superboy and take the emphasis off of superman. And it's too early for this. Let Superman settle his relationship with lois first. Show us how richard reacts to his son being superman's boy also. It'd have been interesting.
4th. About the relationship. I'm not clear on what they're trying to do to the superman/lois dynamic. Both have an undying love for each other. But both don't want to wreck the family she started with some guy who she once believed was the father of her child. I do get it. It's pretty interesting, but I forsee nothing more here than what we'd see on a day in dawson's creek. Lois is conflicted but the best answer's that she'd settle for supes... and it'd have been a fine ending if not for her kid probably being traumatized discovering he's a kryptonian kiling machine. He should be after all he saw in this. Richard will likely be erased from the picture at some point. I hope. I'd keep the focus more on Romance than tragedy of lost love. superman is not a jealous stalker either. I've never seen him portrayed like that until now.
5th. Kryptonite. Make it work correctly. Like some poster says, it's really a little unbelievable how its effects were downplayed here. Superman feels no pain from deadly kryptonite? There's a piece of it still in him and he can still fly and do hero stuff? (I read the argument about the size of the kryptonite being a factor in its intensity or concentration bla bla bla. When was that rule made? Haven't we seen kryptonite rings and even lana's necklace on smallville had a tiny rock that brought clark to his knees so I hope you understand why I think this. )His body doesn't splatter to pieces when he falls back to earth, the doctors can't poke a needle through his skin, and the defribrilater doesn't work. None of that would happen if kryptonite did what it's supposed to really do to superman.
6th. No young clark with glasses. That scene was the definition of superfluous.
7th. the suit. Make it look more like the comics. I'd sit and Read the comics in fact before touching the script. The S was there on the cape for years. Watching fleischer and STM to get a general idea of this huge history of supes doesn't count enough for me. superman's a lot more than fleischer's serials or donner's classic. Taking the cape s off and sticking it everywhere else, darkening colors to make it look less bold because that's how it looked in the old degraded badly colored fleischer dvds isn't what i'd do.
8th. Suspenseless action. Cut that out. No Titanic scene with lois, richard, and superboy would be in my movie, and no plane drop either. It was done better in STM with lois dying in the car while supes saved people elsewhere anyway. If you're going to do it again and try to build the same suspense, do it well. I wouldn't have superboy there so there'd be no chance of him breaking the door open and them all escaping. Like STM, i'd have shots of superman doing super things inter-cutting with the drowning.
9th. Passion of the clark. Make him fight back some instead of getting completely raped so we feel sorry for him. I'd actually leave parts of this out since I thought it was really tasteless shock value like the passion, but I see its good points too to show how superman can be an inspiration even when he's weak like the rest of us. I'd probably make it less intense, but keep the stabbing though.
10th. Teschmacher 2.0? No kitty for the new returns she can't act. I'd have a henchwoman who knew kung fu and was a better intellectual match for luthor. Well atleast there's no otis... except for jimmy. He's a lot like otis in this. I'd tone him down and make him question why clark left the bar.
11th. Make it clearer that jason used his flying powers to lift the plane.
12th. Superman flys off to find a big led sheet of metal to form into a shield for himself as he lifts krypton 2.
13th. Better dialogue. The kid's lines were stock kid stuff. some of the dialogue felt too bland, so spice it up a little. And don't re-use old lines from the 70s movie so blatantly, also redundantly. this one stuck in my head-> I'm always around? what meaning is implied with that. the movie shows us that you aren't so I didn't realy undestand. How about "I'll always love you" instead or "Tell Richard to go find his own woman."
Clark's dialogue's alright, mildmannered, dull, prettymuch who he is, but superman should be everything but that. routh's a little coy and stiff as supes. I'm not sure why i think this way. Maybe it's the suit. He did really well, I thought though. I'd only improve his suit and tell him to play supes more gentle but confident, more like the scene with the kid.
14th. Show people's reaction to his return. A few blank stares from onlookers and cheers from the audience show us people are in shock and astonishment, but where's the "Why the world doesn't need superman?" element besides lois' little tirade that won her a pulitzer.
Ok that's enough for now.