Marvel Studios' latest clip shows director Joss Whedon and the movie's cast discussing the challenges the characters will face working as a team.
The Avengers sees Iron Man, Captain America, the Hulk, Hawkeye, Thor and Black Widow join forces on the big screen for the first time. The film will pick up threads for several years' worth of Marvel cinema.
Robert Downey Jr, Chris Evans, Chris Hemsworth, Scarlett Johansson, Jeremy Renner, Mark Ruffalo and Samuel L Jackson will star in the movie.
Whedon previously told Digital Spy that the ensemble cast left their egos at home when it came to working on the project, and were eager to "to help each other".
The Avengers (titled Avengers Assemble in the UK) hits UK cinemas on April 26 and May 4 in the US.