Groome made her acting debut in the 2001 TV film,
A Fish Out of Water. She subsequently played an orphan in an episode of the short-lived TV series,
Dangerville. When Groome was 14, she was cast in her first feature film role in the British independent film
London to Brighton in 2006, playing an 11-year-old runaway. That year, she was also one of the eight young adventurers on
Serious Amazon for
CBBC. In 2007, Groome had a role in Elaine Wickham's short,
My Mother. In 2008, Groome had a minor role in the comedy-horror
The Cottage. Her breakthrough role was as 14-year-old, boyfriend-searching Georgia Nicolson alongside
Aaron Johnson in the 2008 film
Angus, Thongs and Perfect Snogging, for which she won the award for Best Child Actor at the Buster International Children's Film Festival. She also had a minor role in horror film
The Disappeared. In 2009, she made her stage debut in
Tusk Tusk, a new play by
Polly Stenham at the
Royal Court Theatre in London. The same year, she appeared in the short
Leaving Eva and an episode of
The Bill. In 2010, Groome appeared in an episode of
British television detective drama
Lewis, as well as the short
Silent Things. In 2011, Groome starred in two shorts,
The True Meaning of Love and
Six Degrees. She also appeared in Susan Jacobson's
The Holding and had a lead role in
The Great Ghost Rescue, a film adaptation of
Eva Ibbotson's
book of the same name. She appeared alongside
Stephen Dillane in
Papadopoulos & Sons, in which she played snobby fashion victim Katie. The film was released in the UK through Cineworld on 5 April 2013. ==Personal life==