Marvel Studios has discussed the idea of having a female lead for one of their stand-alone movies. If this is the case, an obvious choice is doing a full feature on the Black Widow. Scarlett Johansen has been rumored to be interested in doing a solo feature and is waiting for the opportunity.
The question remains: does Marvel want or need to do a solo female lead? The answer on need is straight forward and the answer is no. Stan Lee himself has said that there is interest in the movies by women already and so there is not a need to tap the demographic. If the need is not there; what about the desire to create a movie with a female lead? Marvel does seem to want to do a movie with a female lead and there are some characters that would make interesting movies such as Ms. Marvel, who could easily be tied back into the Avengers.
The Black Widow does seem to be an obvious choice for a solo movie due to the character being in three different Marvel films. The character has an immense appeal and does seem to have some great potential story lines.
Possible story lines
There are little details available about the Black Widow’s origin and how she became an agent of SHIELD. It is suggested that she was an enemy agent and that Clint Barton (Hawkeye) came to her aid and brought her around to SHIELD. Another possible connection is her past is tainted by the various things she had done. In the Avengers, Loki told her that her ledger, an account of her life, was dripping red. There is somewhat of a checkered past that Romanov would need to deal with. A solo movie could go into the past and provide some of that potential background story that might be of interest to fans.
Obviously Natasha Romanov is active in various missions for SHIELD outside of her activities with the Avengers. Captain America: The Winter Soldier gave us a glimpse at some of the other missions that she has been part of and how she operates with SHIELD. Detailing some of her other missions might add some additional depth to the Black Widow character.
No matter what the story line, the Black Widow could easily carry her own solo film. The film would appeal to the same fans of the Avengers, Iron Man and Captain America. Add into the mix a series of other supporting characters and the movie would be a sure fire sensation.