She then enrolled in dancing classes and began her film career in 1936 when director Monty Banks was looking for a child actress to appear alongside George Formby in Keep Your Seats Please (1936).
She appeared in Our Fighting Navy (1937), Splinters in the Air (1937) and, with Ignacy Jan Paderewski, Moonlight Sonata (1937).
These included Little Miss Somebody (1937), in which she plays an orphan deprived of her inheritance by a villain, Rose of Tralee (1937), as an Irish singer, and Little Dolly Daydream (1938), in which she is a runaway child.
Plans to have Stuart visit the United States and seek acting roles in Hollywood were effectively ended by World War II.
[3] After her film career, she appeared in seaside shows accompanied by her parents, but at 15 refused to embark on a tour of continental Europe.