March 2009, Johansson first signed on to play Marvel Comics' Russian spy 'Natasha Romanoff' aka the 'Black Widow' in the feature "Iron Man 2", as an undercover spy for 'S.H.I.E.L.D.' posing as an assistant to 'Tony Stark' (Robert Downey Jr.) aka 'Iron Man'.
She was cast only after a scheduling conflict forced actress Emily Blunt to drop out of the part.
Johansson then reprised the role in director Joss Whedon's "The Avengers" (2012) confirming that Marvel was "really behind" the character.
Johansson will again portray the Black Widow in the 2014 feature "Captain America: The Winter Soldier".
And in the Marvel Studios' sequel "The Avengers: Age Of Ultron", Johansson will play the character on