VIDEO : Scarlett Johansson Doesn't See Black Widow Movie Happening Soon

Fans have long clamored for a standalone Marvel Cinematic Universe movie focused on Scarlett Johansson's Black Widow. In a recent interview, Johansson offered reasons why it hasn't happened yet. 'Marvel has a really huge roster. They?re looking four years ahead... It would have to be the best version that movie could possibly be. Otherwise, I would never do it,' said Johansson.