
If a Shocker was to be thrown out in the first scene of the film or whatever, it would have to have some purpose. You can't just start the film on a random fight. That is valuable screentime you're wasting doing that.
Now that we're getting into the 4th movie, and running out of main villains, I think it's time to consider using minor villains in pre-title sequences similar to the James Bond series. I'm talking about villains like Smythe and the Spider-Slayers, Rhino, Electro, Shocker, Hydro-Man, Morbius, and Vulture. That way the movie can start with a bang and since we're at the bottom of the barrel take up 10-15 minutes of screentime.
You can't just start the film on a random fight. That is valuable screentime you're wasting doing that.