I think the problem with spider-man 3 is that the fanboys just had to have venom in there, and the filmmakers put in the sandman even though no one really cared about them, and it created a massive plot hole in the franchise. Plus you have the "dark spider-man" angle that was pushed in the marketing for the movie, and the loose ends with new goblin taking vengeance on spider-man. IMO they should have scrapped sandman, put off venom for another movie, and just focused on spider-man against the new goblin. That would have made a better movie, instead of having to focus on four villains. And I don't even like the spider-man movies anyway.