An alternate Spider-Man 3 with the villains being Sandman and Vulture. Here are the ideas God have blessed me with for that:
Sir Ben Kingsley as Vulture
Thomas Haden Church as Sandman
Tom Hardy as Eddie Brock
Parts of this plot is similar. Others not so much. No Gwen or Captain Stacy.
Adrian Toomes is a former scientist who was working on various projects for the military, including flying apparatuses, experimental particle accelerator tests and work on a symbiotic substance from a meteorite. When he became obsessed with the substance's properties, he began testing it on living subjects, eventually humans, which led to their deaths. The government, as a result, took away all of his work, and he was locked in prison for murder and crimes against humanity, where he met...
Flint Marko. A petty criminal growing up on the streets of New York, Flint began to target larger game as an adult, quitting after he got married and had a daughter, Penny. When his daughter was diagnosed with a rare disease that had no cure, Flint turned back to his old ways, and became a bank robber, stealing money to fund some form of research for a cure. But he was caught by an early days Spider-Man, leading him to be locked in prison. There he and Adrian struck a grudging alliance, and Adrian promised him a way to save his daughter, using the substance he'd begun experimenting with, stating that he'd been close to a breakthrough with the substance and that it's attributes could offer regenerative capabilities for his daughter, which if Flint helps him steal it, along with all of his other, in his mind, projects that were stolen from him and rightfully his, he'd finish this research and fix Penny with it. After the escape, he and Flint break into the particle accelerator facility he worked at and, after uncovering his projects were separated and moved to other locations, Adrian shoves Flint into the particle accelerator, telling him that with Spider-Man practically running the city now and the lengths to which his projects are locked away, they're going to need stronger muscle than the average, stating that it's time for them to be upgraded to oppose that challenge. Activating the machine, he turns Flint into the Sandman, to use his powers for his own ends.
Meanwhile we have Eddie Brock, a Daily Bugle reporter competing against Peter for the job of staff photographer.
And Harry Osborn, torn between his loyalty to Peter and to his dad, Harry struggles for much of the movie with the temptation to go after Peter, but decided he doesn't want to become like his dad.
I know this isn't popular, but I like keeping the Flint killing Uncle Ben. But, in theory, let's set that aside. Give Peter a different motive for his specific hunting of Flint Marko and Adrian Toomes:
Peter's ego. The sin of pride for Peter. Peter begins to let growing ego at being embraced by the city and having everything in his life being solid, and his rescue of citizens in a crane malfunction being honored with the Spidey-Parade and him getting the key to the city, consume him. When the Spider-Man parade is interrupted by Toomes and Sandman, maybe now earlier in the movie than before, attacking an armored military truck carrying Toomes' flying apparatus, Peter confronts them, and is beaten, badly, particularly after Toomes activates his flying apparatus, what he calls The Vulture Wings and uses it's various weapons to fight Spider-Man with Sandman, eventually flying him above the New York skyline and dropping him. Peter's barely able to stop it, via a web parachute, but still slams into the ground. Which Eddie gets a picture of, and Jameson obviously uses for a headline dismissing Spider-Man's capabilities, painting him as reckless and such, running in half cocked to a fight he didn't understand, causing damage.
Eddie investigates the military projects. And comes to the story of them having funding Vulture's projects and covering up the deaths under his watch to avoid culpability.
Peter lets his wounded pride get the best of him and puts a lot of his focus on catching Sandman and the Vulture. Him confronting them in their 2nd heist, a highly guarded government facility, a vault inside it holding the symbiote. In the fight, the symbiote gets on Peter.
After that, Peter grows more arrogant, angry, aggressive, vicious and reckless. He wrecks Eddie's career, in revenge for getting the photos of him being beaten by Vulture and Sandman, by essentially finding a way to make his story seem wrong, using "official" reports and military statements, making it seem like he made it all up. As a result he's fired.
Vulture uses Spider-Man having the symbiote to manipulate Sandman into going after him, them igniting a situation to lead Spiderman to them. When Sandman begins to relent at the idea of killing Spiderman, Vulture threatens his daughter's life, taking her hostage.
Eddie obsessively seeks a way to get revenge on Peter, following him when Peter goes to confront Sandman and Vulture, discovering his identity as Spiderman.
The situation all culminates in the conclusion where the fight leads near a church belltower, Peter nearly kills Sandman as he tries to escape with his daughter, but realizes what he's become when Penny stands between him and her dad. In a moment of clarity, Peter goes to the church belltower, and tears it off, it getting onto Eddie, who'd followed him there.
Cliffhanger is Eddie becoming Venom.
