Spiderman 3

Peter Parker basks in the spotlight with his public success as his superhero alter ego, Spider-Man. He plans to propose to Mary Jane Watson. When the police tell Parker and his aunt that new evidence shows Sandman as being responsible for killing Uncle Ben, Parker goes after the alleged perpetrator personally As Spider-Man, he battles Sandman and his former friend Harry Osborn. During this time, astronaut John Jameson brings an "alien life force" back to Earth with him. The force forms a symbiotic relationship with Peter's costume, influencing his behavior for the worse. As a result, Spider-Man has to fight the villain within, until he finally tears the symbiote from his body. After parting from Spider-Man, the symbiote finds a new host in Eddie Brock Junior, and the resulting merger creates Venom.