Would have been amazing as Vivien Leigh
I've read that she was offered the part of Vivien Leigh in My Week With Marilyn (2011) but turned down to stay with her husband who was ill the time.She was replaced by Julia Ormond.
Catherine would have rocked in the part.Vivien and her may be not physically alike but Catherine definitely posess that old Hollywood glamour and she actually has Vivien's posh(but not in a bad way) and classy way of speaking.Both are beautiful and english oscar winning actresses and both...were diagnosed bipolar!