Is Jessica Alba Replacing Scarlett Johansson as the Black Widow in The Avengers Movie?

Is the actress who played Nancy Callahan in Sin City and Sue Storm in Fantastic Four suiting up to play the Black Widow in The Avengers?

 Actress Jessica Alba was recently captured on film wearing a slinky catsuit very reminiscent of Scarlett Johansson's Black Widow costume from Iron Man 2. Is Alba, who has already played Nancy Callahan in Sin City and Sue Storm in Fantastic Four, suiting up to play another comic book character, possibly replacing Johansson as the Black Widow in The Avengers? Scroll down to see the pics and find out the answer...

The answer is no, Alba will not be replacing Johannson in The Avengers. These pics were snapped on the set of her new movie, Spy Kids 4: All the Time in the World.