Cameras starting rolling today on the superhero movie to end all other superhero movies, 'The Avengers.' Director Joss Whedon confirmed the news on Whedonesque, an online community dedicated to the 'Buffy the Vampire Slayer' creator.

'The Avengers' teams up some of Marvel Comics' biggest names, from Iron Man (Robert Downey Jr.) and Captain America (Chris Evans) to Thor (Chris Hemsworth) and Black Widow (Scarlett Johansson). Samuel L. Jackson will reprise his 'Iron Man 2' character, Nick Fury, while Mark Ruffalo replaces Edward Norton as the Incredible Hulk.

The plot of the film is being kept under wraps, but we do know Disney, which bought Paramount out of its distribution deal with Marvel and will release 'The Avengers' as well as 'Iron Man 3,' has big expectations for the $150-million-budgeted film. The Mouse House will kick off the 2012 summer movie season with 'The Avengers' on May 4, 2012.