Movies
Rex Features
The Lost In Translation actress, who is famed for her blonde locks, has been forced to dye her hair for the part of Black Widow, says The Sun.
The newspaper also suggested that she has been undergoing a tough exercise regime for the role as the gymnastic Russian spy.
Johansson will be joined by Robert Downey Jr, Samuel L. Jackson, Gwyneth Paltrow and Mickey Rourke in the comic book sequel.
> Johansson, Paltrow spar on 'Iron Man' set
Movie Reviews
'The Vow' reviewChanning Tatum tries to win back Rachel McAdams in romantic drama The Vow.
At the Movies
This Week's 5 Hottest Movie VideosTrailers for The Avengers and Spider-Man are among this week's highlights in film.
Movies Interviews
Daniel Radcliffe talks 'Woman in Black'The actor talks to Digital Spy about his first post-Potter outing.
Box Office Charts
'Chronicle' leads UK box officeSuperhero drama Chronicle leads the UK box office ahead of Journey 2.
