Neagle died in 1986, aged 81. (Some sources state that Neagle was suffering from cancer at the time of her death). She was interred alongside her husband in the City of London Cemetery.

Neagle was bestowed with the honour of Commander of the order of the British Empire (CBE) in 1952, and, for her contributions to the theatre, Dame of the Order of the British Empire (DBE) in 1969.

The following list contains all of Neagle's acting credits in feature-length motion pictures with the exception of Queen Victoria (1942), which is actually a compilation of two earlier films, Victoria the Great and Sixty Glorious Years. All of her films were directed by Herbert Wilcox and produced in the United Kingdom unless otherwise noted.

In addition, Neagle also appeared briefly as herself in a documentary short entitled The Volunteer (1943), and served as narrator for the films The Prams Break Through (1945) and Princess's Wedding Day (1947). Neagle also produced, but did not star, in three films starring Frankie Vaughan: These Dangerous Years (1957), Wonderful Things (1957), and The Heart of a Man (1959).