A couple of years ago I made a post about how I would have done the Green Lantern movie differently. I've thought about the same question when it comes to some other movies, especially comic book movies, and I thought I would share one that I feel was especially disappointing: Spiderman 3.
Spiderman 3 was disappointing for several reasons, but the principle reason was because it didn't have to be. Spiderman 2 left us with a great set-up for the third film, but when the movie came, it felt like they just didn't want to tell the story that the second movie set-up. All of the story around Harry Osburn felt like it was there because it had to be there.
Furthermore, the fundamental flaw of the film is obvious: too much story for too little movie. Your telling the story of Venom (which is already a necessarily complicated story), Harry getting amnisia, Peter and MJ having relationship problems, a reworking of the Uncle Ben story along with Sandman, and the background theme of Peter letting fame get to his head. That is way too much, leaving the movie horribly cluttered and unfocused. But what's worse is that we didn't get the story that we really wanted, a solid conclusion for the relationship arc between Peter and Harry. The most important part of the movie for us seemed to be the least important for the writers and director.
So two things should be at the heart of this correction: #1 the focus of the story should be the restoration of the relationship of Peter and Harry. #2 one villain besides 2nd Green Goblin. However, we want a villain that is going to influence Peter and Harry's relationship. I don't see how that'll be true of Sandman, so Venom makes significantly more sense. Also, with the Venom story, you can have the fascinating reversal of guilt within the relationship.
So what follows is the story I would have told, with 4 main fights:
During the opening credits, we see the symbiote crash land on earth. We then can see it go on various adventures, maybe taking hold of various animals briefly, until it ends up in the sewers.
We can start the movie the same way the original movie starts: with Spiderman being celebrated by the community and Peter trying to talk to Harry but being ignored. It is a pretty good starting point, so why change. However, once all of that is basically established, I would have Peter proposing to MJ, and MJ saying yes. Right after the proposal, Peter hears of a fire somewhere in the city, and goes to investigate.
When he arrives, he discovers that it was an abandoned building, and Harry is there waiting for him. They fight, in a similar way in the movie (that scene was actually pretty good), but the fight ends with Harry being victorious, and Peter having to escape through the sewers. It is in the sewers that the symbiote attaches to him.
He returns home, tired, with the symbiote covering him as he sleeps. When he awakes, he has the black suit (which should be smoother IMO). He eventually shows it to MJ, but instead of being impressed by it, she is concerned. So Peter promises to take it to Dr. Connors, and he does so. Connors promises to look into it, and tells Peter stay away from it until he gets a chance. Peter agrees...
And then immediately after we get a montage of him using it to fight crime; and having a lot of fun doing it too. This then leads to Peter bringing in pictures of the new suit to JJ. He has a conniption over it. This leads to the introduction of Eddy Brock, and the reward that JJ offers for evidence of Spiderman breaking the law.
Peter comes home to MJ, and they have a talk about the black suit, and MJ's career, and simply enjoy each others' company. Eventually Harry comes up, and MJ suggests that maybe she'll be able to talk to him. Peter thinks this is a bad idea, and they go to bed. In the morning, MJ gets up, and leaves a note telling Peter that she is off to talk Harry. Harry sees this through a camera that he has apparently been using to spy on them.
Harry then leaves his own note, or gives Pete a message in some manner, that he has taken MJ to some location. Peter goes there to save her, yelling at Harry for involving MJ in their disagreement. They have a second fight. This time, Peter is much more aggressive, due to the suit beginning to have an effect on him. During the fight, Brock shows up to try and take a picture and Spiderman destroys his camera infuriating him.
Eventually Peter wins the fight, and Harry reveals that MJ isn't actually there, and that he never took her to begin with. Peter tells Harry that he's crossed a line. So far he has not wanted to fight Harry because they are friends, but next time Harry attacks him, he will not hold back.
Harry, downcast, returns home to find MJ waiting for him. He doesn't want to talk to her, but she doesn't take no for an answer. (maybe some explanation of how she got in will be necessary, but that'll be for the director to decide). Harry and MJ have an argument, where MJ challenges Harry to reconsider his devotion for his father. Point out that while it was reasonable to be mad before he knew who his father was, at this point he's just being ridiculous. Harry than yells, "he killed my father", to which MJ replies, "Yeah, 10 minutes after your father threw me from a bridge!" She mentions that he died by his own glider at some point. Then Harry tells her to get out, and she does.
We then cut to Harry looking off his balcony a bit later, when he calls to his butler to get his father's autopsy report. He looks it over, and then looks tired, and we cut away.
We then see MJ returning home to Peter, and they argue about her not listening to him. He doesn't talk to her the way he normally does, and she questions this. Pete backs down and apologizes, saying that he was just really worried. She says she understands, and they move on.
The next day, he goes to the Daily Bugle to find that Brock has won the award with his fake photo. Enraged, Peter goes after Brock, but JJ and Robby pull them apart. Peter storms out, and returns later with evidence that Eddy faked his photo. Eddy is fired.
We then turn to a montage of Peter turning evil. Not emo, but actually wicked. The idea of an emo Peter actually kind of works for me since it would make sense that Peter doesn't really know how to be bad. But still, what we have in the film was executed poorly (especially that very uncomfortable dance scene), but I don't have any better ideas here. Perhaps it simply could have been done better. But the basic idea, with Connors commenting on the symbiote in the background, makes logical sense to me, and I think it could be done well. Be we should see him fighting more violently, flirting with other women, and acting like a jerk.
MJ complains to Peter about his recent behavior, eventually blaming the suit which gets Peter really upset about. Afterwards she runs out. We find that she ends up going to Harry to tell him that Peter is changing and she needs his help. Harry asks how he could help, and she replies that she doesn't know, but she can't reach him anymore. Harry says that he'll try.
Just then Peter shows up, asking what MJ is doing there. Harry attempts to explain, and talk to him, but Peter instead is simply enraged that they are plotting against him. Peter then attacks Harry, and now it is Harry who is trying to stop the fight. However he does defend himself, using some more advanced weapons than he had before. However, Peter decimates him in the end.
He is about to kill him when MJ stops him. Peter than raises a hand to strike her, but then realizes what he is about to do. He takes a few steps back in shock. He then looks down at Harry, and then at his hands, and then back at MJ. He says, "take care of him" and webs away. MJ then begins to take care of Harry.
Return to the Red and Blue
Peter then goes to the church, where we get the famous church scene, complete with Brock getting the symbiote. However, he doesn't smile, ever.
Peter returns home, naked. MJ is packing. MJ looks at him and questions where his suit is. He says he got rid of it, and he is sorry about what happened earlier. She says that a simple apology doesn't make everything better, and Peter agrees. He says, "hopefully time will. I still love you, but there is something in me I have to fix." MJ says she is staying with Harry which Peter clearly doesn't like. But he asks her to apologize for him to Harry as well, and she says that she will.
At this point, Peter takes a sabbatical from being Spiderman, focusing on being Peter Parker and getting his head right. He also stops watching the news and ignores various calls from the Daily Bugle. Meanwhile, Venom has taken over Peter's role as Spiderman and is framing him for various crimes. He is destroying Spiderman's reputation and Peter is completely unaware because of his seclusion.
At some point, Venom attacks Harry , or perhaps just commits a crime near him. When this happens, Harry realizes that Venom is not Peter and something is going on. He quickly calls MJ, but while he is on the phone with her, Venom captures him.
Peter tracks down Venom (how doesn't really matter) and brings Harry's gear with him. He rescues Harry and gets Harry his gear. They have a brief period of forgiveness, and then the two of them fight Venom together (which, let's face it, was the only good part of the actual movie). The fight goes public and people see the red and blue Spiderman fighting the black Spiderman, and begins to cheer for Spiderman again.
Harry eventually does some "death-defying" move to get a sonic bomb close to Venom, allowing Peter to defeat him. In the process, Harry is impaled by his own glider. The two of them talk about their past, and what could have been, and laugh. Harry says that he loves Pete, and then dies.
Peter than returns to MJ. She forgives him, as he cries in her arms. The movie ends with MJ giving the final speach, interpreting the events, who Spiderman is, etc...