The first full-length trailer for Marvel and director Joss Whedon's epic superhero adventure The Avengers has finally arrived. Click on the clip below for your latest look at Captain America (Chris Evans), Iron Man (Robert Downey Jr.), Black Widow (Scarlett Johansson), Thor (Chris Hemsworth), Nick Fury (Samuel L. Jackson), The Hulk (Mark Ruffalo), and Hawkeye (Jeremy Renner) as they prepare to save the world next summer.