Spider-Man 3 is a 2007 American superhero film based on the Marvel Comics character Spider-Man. Produced by Columbia Pictures, Marvel Studios, and Laura Ziskin Productions, and distributed by Sony Pictures Releasing, it was directed by Sam Raimi from a screenplay he co-wrote with his brother Ivan and Alvin Sargent. It is the third and final installment in Raimi's Spider-Man trilogy, and the sequel to Spider-Man (2002) and Spider-Man 2 (2004). The film stars Tobey Maguire as Peter Parker / Spider-Man, alongside Kirsten Dunst, James Franco, Thomas Haden Church, Topher Grace, Bryce Dallas Howard, James Cromwell, Rosemary Harris, and J. K. Simmons. It also marks the final acting appearance of Cliff Robertson before his retirement in the same year and his subsequent death in 2011.

Peter Benjamin Parker, also known by his alter ego Spider-Man, is a fictional superhero portrayed by Tobey Maguire that is based on the comic book character of the same name. He is the protagonist of Sam Raimi's Spider-Man film in 2002, its two sequels, and in tie-in video games. This version of the character was followed by Andrew Garfield's portrayal in Marc Webb's The Amazing Spider-Man duology (2012–2014), with a further iteration being portrayed by Tom Holland set within the Marvel Cinematic Universe (MCU) (2016–present). Maguire reprised his role as a supporting character in the MCU film Spider-Man: No Way Home (2021), appearing as an older version of himself alongside his two successors' versions of the character. To distinguish himself from the two other versions of himself, he is nicknamed "Peter-Two" by them, referred to by Marvel's official website as the Friendly Neighborhood Spider-Man, and in the film's script as "Raimi-Verse Peter" and "Raimi-Verse Spider-Man".