Last year, Jessica Chastain was a complete unknown. Now she's in everything " with everyone. She tells Steve Rose about working with Pitt, Pacino, Fiennes, Redgrave …There's nothing we like better than an overnight success story, but Jessica Chastain's feels just too good to be true. A perfect storm of Chastain movies, swelled by critical adulation, is currently heading for our shores, in what looks like a co-ordin…
