|In Harry Potter|
In 1988, she starred as Ophelia in the Renaissance Theatre Company's touring production of Hamlet, starring her future brother-in-law, Kenneth Branagh, as Prince Hamlet.
Sophie is married to British actor Richard Lumsden, who co-starred with Emma, Alan Rickman, Gemma Jones, Robert Hardy, Elizabeth Spriggs, and Imelda Staunton in 1995's Sense and Sensibility. Sophie herself also co-starred in Robert Altman's 2001 ensemble film Gosford Park, also starring Dame Maggie Smith, Michael Gambon, Geraldine Somerville, Stephen Fry, and Kelly Macdonald, with music scored by Patrick Doyle.
- In 2010, she alongside Zoë Wanamaker, who portrayed Rolanda Hooch, respectively portrayed Mrs. Reynolds and Ariadne Oliver in Hallowe'en Party, one of the episodes of Agatha Christie's Poirot.