Rebecca Hall is in talks to join the cast of Shane Black's "Iron Man 3" at Marvel Studios and Disney Pictures says Variety.

Hall would play a scientist who plays a pivotal role in the creation of a nanotechnology, known as Extremis, that winds up being sold to terrorists. The story borrows elements from Warren Ellis' six-issue mini-series of the comic which heavily influenced the first film.

Jessica Chastain was previously reported as being attached to the role, but the actress revealed on Monday that scheduling conflicts prevented her from getting onboard. Shooting kicks off this month in North Carolina before moving to China.