Johansson tipped for part in 'Iron Man' sequel

Scarlett Johansson is reportedly in talks to play femme-fatale the Black Widow in the forthcoming 'Iron Man' sequel - after scheduling conflicts forced British actress Emily Blunt to bow out of the competition for the role.

Blunt was widely tipped to take on the part of Russian spy Natasha Romanoff in the follow-up of the 2008 blockbuster.