spider-man 3 script probably looks decent on paper.
problem with it is the pacing and a lot of the designs for costumes.
pitch.
Spider-Man is finally accepted as a hero, much to JJJ anger, he is now taking medicine in dealing with his stress.
Unfortunately MJ's career is not doing so hot, Peter barely notices as his fame has gotten to his head.
His perfect life is thrown out of wack as Harry has become the next goblin, enhancing his father's tech in order to kill Peter. Unlike his father, his first attack is too headstrong and results in him being defeated by Peter relatively easily. Meanwhile, A small time escaped criminal, Flint Marko, is revealed to have been Uncle Ben's real killer. Peter's revelation over this makes him want revenge. Flint's daughter's condition is revealed and he turns into sandman. spider-man's obsession with revenge over Uncle Ben's death pushes MJ away and causes him to be less sympathetic to Harry.
In a battle where sandman tries to explain how Uncle Ben died and it was an accident, Spider-man attacks with blind rage. He believes he has killed Sandman, he tries to tell Aunt May indirectly, she is disappointed. Meanwhile, Harry's second plan is to attack MJ and Peter's breaking relationship as he remembers his father's first lesson "Attack the heart"
Having realized that their separation was caused by Harry, Peter confronts Harry, with no mercy as he has already labeled himself a murderer (killing sandman supposedly). In an all out battle, Peter attacks Harry mercilessly. Harry tries to kill Peter but it blows up in his face... literally. Sandman is revealed to still be alive, having rebuilt himself. he finds out his daughter has died from her illness, he blames spider-man
Peter, realizing what he is becoming, tries to reconcile with MJ, catching her at a nearby alley near the club she works at now after losing an acting gig... as spider-man, it seems too late. As Spider-man swings away, Sandman is revealed to have been stalking him. He kidnaps MJ. Peter sees it in the news and goes to try and save her. Sandman is ready this time and mercilessly beats on spider-man. Harry's butler sees it in the news and tries to reason with him. Harry does not seem to care much after being scarred. Spider-Man has no chance against sandman. Harry has a change of heart and helps Spider-Man defeat Sandman, dying during the battle. Harry dies, having made peace with Peter.
Spider-Man confronts Sandman, and tries to reason with him. He unmasks, telling him who he really is. Sandman realizes that his revenge is blind and that peter is as much a victim of circumstance as he is. Peter lets him escape. Peter and MJ reconcile.
Avi Arad: "... and add Venom"