There are few actors who decide not to use doubles while filming a movie, but sometimes, even if they do not want to, the production forces them due to the difficulty of the scenes that are filmed. The high risk action scenes are performed by the actor’s double and we never realize it’s not our favorite character that is on the screen.
To be Black Widow in The Avengers movies is not an easy task. You must be very agile, strong and fearless. Scarlett Johansson has all of those features; however, you need an additional Black Widow to help her improve some scenes, and this is her double.