Still, the fourth film, and possibly even more, were planned by Sony, however, ultimately Sam Raimi said that he couldn’t come up wit a story that worked the way he wanted in the time the studio required, and thus the project was cancelled.
Spider-Man 3 is actually the highest grossing Spider-Man movie ever made thanks to international business, but the trilogy was on a slow decline as far as domestic numbers went.
Spider-Man 3 also didn’t review nearly as well as the previous two movies did.