I’m told that Jessica Chastain is back in the mix to play a starring role opposite Robert Downey Jr in Iron Man 3. The role is a sexy scientist every bit as smart as Tony Stark. Chastain, who last year starred in The Tree of Life, The Help, Take Shelter and The Debt, was originally offered the role but it looked like she was going to be preoccupied making a movie with Joel Edgerton and Samantha Morton. I think that movie was The Disappearance of Eleanor Rigby. She also had scheduling issues involving the Kathryn Bigelow-directed Sony Pictures film about the hunt for Osama Bin Laden.