10. Don't Copy Spider-Man 2
Right out of the gate we've got the first rule, and the first semi-success, for this sequel. Copying Spider-Man 2 is the biggest mistake anyone could make because a) it's the best Spider-Man film and b) see above. To try and capture the lightning in a bottle that Sam Raimi had with that film would be an exercise in futility, as well as completely unoriginal. Instead, this film should strive to outdo Spider-Man 2. A lot of crap has been heaped on this movie, but it was still a decent movie. The big reason it gets as much stick as it does is because, as previously mentioned, is the amount of re-treading the film did with the original origin. They've already taken steps to avoid this by digging deeper into the villain chest and producing Electro and the Rhino, as well as bringing Mary Jane in for a supporting role to lay down future groundwork. That said, it's important to remember that this is a new universe. Much like Peter Parker with his new found powers, you're allowed to have a grace period where you have fun and still remain serious about it. If there were a flaw to Spider-Man 2 (besides the dodgy CGI of sinking Doc Ock) it would be that Peter was already too soured about the prospect of being a superhero. If they had perhaps paced themselves on this slight flaw, they perhaps could have saved it for Spider-Man 3 and instead made a real film instead of making a low-rent remake of The Mask. Peter should still be having fun with his powers, and not really thinking about giving them up.