"At the premiere for Cloudy with a Chance of Meatballs on Saturday, Bruce Campbell told Access Hollywood that Spider-Man 4 will start in January 2010 and that he'll have a larger part:
'The actor, who has a long relationship with director Sam Raimi via his lead role in the Evil trilogy, made memorable cameos in the first three Spider-Man films.
However, he may have a bigger role this time around. Bruce told Access that in the next installment in the superhero franchise, he’s been told he has a major part – but didn’t yet know anything about his character.'
Columbia Pictures has scheduled the fourth installment for a May 6, 2011 release."
Like you can't make a Pirates of the Caribbean movie without Johnny Depp, you can't make a Spider-Man movie without Bruce Campbell. "Groovy."
Maybe he's playing Mysterio?