You can bid on your chance to attend the premiere of The Avengers movie, with benefits going to Water Defense.
But that's not all as the winning bid -- and friend -- will also get to meet Professor Bruce Banner aka The Incredible Hulk himself, Mark Ruffalo!
Head on over to Ebay for full details and to place your bid!
The Avengers assembles May 4th, 2012 and is directed by Joss Whedon, starring Robert Downey Jr. as Iron Man, Chris Hemsworth as Thor, Chris Evans as Captain America, Samuel L. Jackson as Nick Fury, Mark Ruffalo as the Hulk, Scarlett Johansson as the Black Widow and Jeremy Renner as Hawkeye.
Head on over to the Cosmic Book News The Avengers Movie Hub for more news, images and trailers.