Brenda Blethyn is a two-time Oscar nominee and an actress whose career didn't really take off until she was in her forties. Best known for her roles in the Secrets and Lies, and Little Voice, she's back on the London stage for the first time in five years.
Has Hollywood fame changed one of Britain's best actresses? Brenda Blethyn joins Martha to talk about life in the film world.
The BBC is not responsible for the content of external websites.