9. Green Goblin II (Spider-Man 3)
The closing few minutes of Spider-Man 2 left us all believing that we would finally see Harry Osborn take up the Green Goblin mantle in the planned third instalment just as he did in the comics. Would he wear his father’s suit or a version closer to the comic books? There was even speculation that we might get to see the Hobgoblin! As it turns out, the answer was unfortunately none of these. What we got instead was James Franco riding a flying snowboard in a green ski mask and bland jumpsuit. Of all the options they could have gone for, this bizarre costume was just one of the many decisions that makes Sam Raimi massively disappointing final part of the trilogy so universally despised.