Kirsten Dunst recently leaked to MTV that she will return for both Spider-Man 4 and Spider-Man 5. “I’m in” is all she said, before quickly changing her response to, “I’m not saying anything.” Dunst in the past has been the most difficult actor in the series to bring back to film additional installments, including the recent sequels. Director/Producer Sam Raimi and Spider-Man himself, Tobey Maguire, announced the fourth and fifth Spider-Man films back in early September. Maguire has signed a contract deal for $50 Million for both sequels. Actress Bryce Dallas Howard was added to the cast, playing Gwen Stacy, Peter Parker’s “first true love” in the comic series. Worldwide,…