- Began acting at the age of 6 at the Allsorts Drama School in London, England.
- Auditioned for the 2003 film Peter Pan with her brother; did not get the role of Wendy, but her brother landed the part of Michael Darling.
- Best known for her role as Susan Pevensie in The Chronicles of Narnia series.
- Is terrified of mice, and had to have a body double for The Chronicles of Narnia scenes involving rodents.
- Captained the lacrosse team and was head girl at North London Collegiate.
- Starred in a production of Spring Awakening at the Oxford Playhouse in 2008.
- Deborah Popplewell — Mother
- Andrew Popplewell — Father
- Lulu Popplewell — Sister
- Oliver Popplewell — Grandfather
- Freddie Popplewell — Brother
- University of Oxford, Magdalen College, Oxford, England (2010)