What is it with audience members at Studio 54? First we have Shia LaBeouf causing chaos at the venue during a performance of Cabaret. And now, we have Keira Knightly being disturbed as she made her Broadway debut in Thérèse Raquin. During the October 1 performance, a young man started shouting at the Oscar nominee from the mezzanine, before tossing a bouquet of flowers at the stage. Knightley and Tony …
