An international trailer for The Avengers features the Black Widow working her wiles on Bruce Banner.
Widow “You have to join.”
Banner “What if I say no?”
Widow “Then I will convince you to!”
Since Comic Book Movie did the translating from German here’s their great site link so you can see the trailer in German. There’s also footage of Captain American, Iron Man and Bruce Banner.
Earlier this month Scarlett Johansson talked about the Widow’s great story in The Avengers and her hopes for a solo movie.