Joss Whedon thinks 'The Avengers' is a "ridiculous concept".
The director - who is currently shooting the project with stars including Chris Hemsworth, Robert Downey Jr, and Scarlett Johansson - admits the comic-book based film, which involves various characters throughout time travelling to the present, is slightly unusual, and will be humorous as a result.
He said: "For me, a movie works if you put people in dire circumstances and they find it funny.
"It's just like the comics - the fate of the world always depends on what happening, but if it gets self-important and dull then nobody wins.
"'The Avengers' is a ridiculous concept. It's a very motley crew, so there's always going to be humour in something like that."
Joss also admits he particularly enjoys watching all of the actors come together and "geek out" about their co-star's outfits.
He added to Total Film: "It's so rare that you actually get everybody together, but it is fun when you do.
"The best part is watching the way they geek out with each other. You get someone dresses as Captain America going, 'Wow! It's Thor!' "