Was a member of the National Youth Theatre with Charlotte Reather. They are still friends and perform regularly together as part of the Gum!Gum! sketch troupe along with Marc Elliot and Jonathan Oney.
Nephew: Joe Mendes, Kate Winslet's & Sam Mendes' son, born on 23 December 2003.
On January 14, 2009, she gave birth to a little girl, Pearl with photographer Henry Steedman.
Sister-in-law of Sam Mendes and Edmund Harcourt.
Has a son, George Bryn Mawr Winslet Jones with Gareth Rhys Jones.