Scarlett Johansson will appear in 'Iron Man 3'

The stunning actress will reprise her role as Black Widow for the third instalment of the superhero movie, alongside Don Cheadle and Gwyneth Paltrow.

Feature Film Casting have put out a new message, revealing new details about the film as well as confirmation Scarlett will return.

The call-out added: "The storyline is being described by writer-director Shane Black as being a Tom Clancy-thriller with Iron Man fighting real world villains.

"The studio wasn't happy with the result of 'Iron Man 2'. That pretty much came about due to a rushed production schedule in an attempt to hit a release date rather than simply make a good film, but I digress. 'Iron Man 3' will not be another, 'two men in iron suits fighting each other.'"

In 'Iron Man 2', Black Widow only had a bit part but her role will be much bigger in the next film, which is due out next May.