Natasha Romanov - code name Black Widow is a member of the Avengers team. She was born in Russia, where she received her training at a very young age, before being recruited by S.H.I.E.L.D. She is played by Scarlett Johansson in the films Iron Man 2, and The Avengers. While at Supanova we discovered her capturing Lex Luthor and just being generally awesome!
Here are some of the pics.