By Dominic La-Viola
Jessica Chastain was going to star in the upcoming sequel, Iron Man 3, but it was announced that due to her tight schedule she would not be able to star in the film as planned. The Oscar-nominated actress did star in six films in 2011 alone, so her schedule is tighter than most people would think.
Most of the old cast is coming back for the sequel and there are some new comers, which include Guy Pearce and Ben Kingsley. Along with new cast members, there is also a new director — Shane Black. Jon Favreau is not returning for the sequel.
Source – The Hollywood Reporter