On stage, Knightley appeared in Martin Crimp's 2009 West End production of "The Misanthrope", which earned her a nomination for a Laurence Olivier Award for Best Actress in a Supporting Role in a Play. She also starred as the eponymous heroine in the 2015 Broadway production of "Thérèse Raquin". Knightley is known for her outspoken stance on social issues, and has worked extensively with Amnesty International, Oxfam, and Comic Relief. She was appointed an OBE in the 2018 Birthday Honours for services to drama and charity.