Black Widow by Marvel Comics'
It's based on the invincible black widow comics.
She's part of Avengers.
Synopsis:
In Marvel Studios' action-packed spy thriller "Black Widow," Natasha Romanoff aka Black Widow confronts the darker parts of her ledger when a dangerous conspiracy with ties to her past arises. Pursued by a force that will stop at nothing to bring her down, Natasha must deal with her history as a spy and the broken relationships left in her wake long before she became an Avenger.
Recommendation:
Adventure, action and science-fiction are all about this movie. Black Widow one superhero that doesn't have powers and is an increíble fighter and spy. Natasha Romanoff has an interesting past full of fights, you will have a good time watching it.