The full-length trailer for SPIDER-MAN 3 debuts today at 10 pm (E.T.) across CBS and Viacom-owned platforms.

A total of 14 online destinations from Viacom’s networks are supporting the airing of the trailer, including AddictingGames.com, AddictingClips.com, BET.com, MTV.com, IFILM.com, Nick.com, ComedyCentral.com, GameTrailers.com, LOGOonline.com, Neopets.com, SpikeTV.com, The-N.com, VH1.com, and Xfire.com.

The new trailer will also air on BET, CBS, Comedy Central, Logo, MTV, MTV2, Spike TV, and VH1 television stations, with each network supporting the event with custom promotions both on-air and online.

Immediately following the television premiere of the two-and-a-half-minute trailer, a high-definition version of the trailer will be available exclusively on MTV Networks’ IFILM.com.

In SPIDER-MAN 3, Peter Parker has finally managed to strike a balance between his devotion to Mary Jane and his duties as a superhero. As Spider-Man basks in the public’s adulation for his accomplishments, Peter becomes overconfident and starts to neglect the people who care about him most. His newfound self-assuredness is jeopardized when he faces the battle of his life against two of the most feared villains ever, Sandman and Venom, whose unparalleled power and thirst for retribution threaten Peter and everyone he loves.

Columbia Pictures’ SPIDER-MAN 3 is directed by Sam Raimi and stars Tobey Maguire as Peter Parker/Spider-Man and Kirstin Dunst as Mary Jane Watson. The movie also features Bryce Dallas Howard as Gwen Stacy, Thomas Haden Church as Flint Marko/Sandman, and Topher Grace as Eddie Brock/Venom.

SPIDER-MAN 3 kicks off the summer blockbuster season on May 4, 2007.