In 2012, when she was on the set of the movie The Brass Teapot, she met love of her life Michael Angarano. Michael Angarano is also an actor and he is popular for his role in the movies like The End of Love and The English Teacher. They began their romantic love affairs since their first meeting and they have been living together as a boyfriend and girlfriend since 2014. There is no any rumor about her married life and divorce than this sweet love life.
While Juno was in Taunton, Somerset, she was enrolled at Enmore Primary School and Bedales School. She also joined King's College, Taunton. As both of her parents are a reputed name in the film industry, she got an easy pass to pursue her acting career. She has been acting since she was eight. She made her acting debut in 1997 by appearing in the movie Vigo: Passion for Life. In 2000, she was seen in the movie Pandaemonium playing the role of Emma Southey. She got her rise in fame after starring the role of Polly Hart in a British psychological thriller-drama film Notes on a Scandal. She has been earning lucrative amount of salary and her net worth is said to be around $1 Million.