Claim: Spider-Man 3 included the fictional character Venom as the main antagonist.
Evidence: During pre-production , Raimi originally wanted another villain to be included along with Sandman , but at the request of producer Avi Arad he added Venom , and the producers also requested the addition of Gwen Stacy.
Venom , or the Venom Symbiote , is a fictional character appearing in American comic books published by Marvel Comics , commonly in association with Spider-Man.