Star of the 2008 historical drama The Duchess who also played the title character's love interest in Captain America: The First Avenger. She portrayed Ella's mother in the 2015 film Cinderella and Peggy Carter in 2015's Ant-Man.
She studied at the Guildhall School of Music and Drama.
Her American movie debut was in Woody Allen's Cassandra's Dream.
Her parents divorced when she was two years old. In 2014, she began dating musician Evan Jones but the couple later broke up.
Her parents met and bonded in a London workshop of Dale Carnegie's titled "How to Win Friends and Influence People."