[citation needed][3] Bromiley successfully auditioned for the role of Gloria in the Hollywood film The Girls of Pleasure Island (Paramount, 1952).

Her major roles in several British films include sixth former Paulette at Angel Hill Grammar School (aged 26 at the time) in It's Great to Be Young (1956) in which Bromiley's singing voice for the Paddy Roberts/ Lester Powell Ray Martin song "You are My First Love" was dubbed by Edna Savage (and by Ruby Murray in the pre-credits sequence), Rose in A Touch Of The Sun (1956) co-starring with Frankie Howerd, Sarah in Zoo Baby (1957) with Angela Baddeley, Small Hotel (1957), Angela in The Criminal (1960) and a minor role in The Servant (1963), the latter two directed by Losey.

Directed by Peter Brook, it also starred Paul Scofield and Richard Johnson, and was set on board a plane that develops engine trouble.

[6] Bromiley also had roles in such popular television series as The Adventures of Robin Hood (1956) as Lady Rowena ("Hubert" episode), Armchair Theatre (1957), Play of the Week ("Arsenic and Old Lace") (1958), Saturday Playhouse ("The Shop at Sly Corner") (1960), Z-Cars (1964), The Power Game (1966) and No Hiding Place (1965, 1966), and the television play Jemima and Johnny (1966).

[9] Once retired from acting, Bromiley lived in Dorset, and developed an interest in 16th and 17th century amateur domestic needlework, writing on the subject, and curating two major exhibitions.