USA Today spoke with Spider-Man 3's Tobey Maquire and two of the producers at Comic-Con about whether the upcoming film will be the last in the Spider-Man franchise:

"We've done an amazing job at keeping things fresh," Tobey Maguire tells USA TODAY. But, he adds, "it's hard to imagine continuously coming up with stories that deserve to be told. I'm not sure if there are more stories for this character that are interesting enough to be excited about doing more."{@@@[email protected]@@}{@@@[email protected]@@}Sony Pictures, the distributor for the films, isn't saying either way. And superhero franchises, such as the Hulk, have been pronounced dead, only to resurface under a new director or production company.{@@@[email protected]@@}{@@@[email protected]@@}But Spider-Man producers concede they haven't looked beyond this installment of the series, which they always viewed as a trilogy.{@@@[email protected]@@}{@@@[email protected]@@}"We don't have a book we're adapting, like a Lord of the Rings," says Spider-Man producer Laura Ziskin. "It's open-ended. But this could be the last. We've never started on the next movie while we were working on the current one."{@@@[email protected]@@}{@@@[email protected]@@}More than a dozen big-studio movies will be featured at the nation's largest comic-book convention this weekend, but none come shouldering more excitement or expectations than Spider-Man. It's due in theaters May 4.{@@@[email protected]@@}{@@@[email protected]@@}Producers - and perhaps, they say, a star from the movie - will unveil some hastily gathered footage from the film Saturday as a goodwill gesture to the convention, which has been a taproot of the franchise's loyal following.{@@@[email protected]@@}{@@@[email protected]@@}"This is a going-home kind of thing," producer Avi Arad says. "We brought the first one here and the fans have supported us and (director) Sam Raimi from the start. We wanted to say thank you."{@@@[email protected]@@}{@@@[email protected]@@}Filmmakers are closely guarding plot points to the film, though it will feature a new villain, Sandman, played by Thomas Haden Church.{@@@[email protected]@@}{@@@[email protected]@@}And Ziskin promises one foe will be Spidey himself.{@@@[email protected]@@}{@@@[email protected]@@}"He'll have to battle villains within," she says. "I love what we've done with this character."{@@@[email protected]@@}{@@@[email protected]@@}So does Maguire.{@@@[email protected]@@}{@@@[email protected]@@}"This one, to me, has more interesting twists and turns" than the first two, he says. "It's been a fun ride."