Gray began writing film scores in the
Weimar Republic. His films there included
Emil and the Detectives (1931) and
The Countess of Monte Cristo (1932). and the following year they settled in
Amersham, Buckinghamshire, where they lived in Bois Lane. Like many of his fellow
émigré composers he was arrested (on June 26 1940) as an “enemy alien” and taken to Liverpool, and from there interned on the
Isle of Man. But by 1943 he had established himself in the British film industry, composing for
London Films and other major studios before joining
Powell and Pressburger to score many of their best-known Archers Film Unit productions, including
The Life and Death of Colonel Blimp (
1943),
A Canterbury Tale (
1944), ''
I Know Where I'm Going! (1945) and A Matter of Life and Death'' (
1946), the Prelude of which was recorded on a
78 disc and later reissued on EMI CD. 'Commando Patrol' from
The Life and Death of Colonel Blimp ("a perfect illustration of the jazz idiom in background scoring") In 1951 he composed the score for the British–American adventure film
The African Queen, directed by
John Huston and produced by
Sam Spiegel and
John Woolf. Gray also composed for theatre, television and radio, including the 1946
Stratford-on-Avon production of ''
Love's Labour's Lost, and Much Ado About Nothing'' starring
Robert Donat at the
Aldwych Theatre, also in 1946. For television he contributed the music for 117 episodes of
NBC's widely syndicated
Douglas Fairbanks Jr. Presents in co-operation with
Bretton Byrd. The series was filmed at the
British National Studios in
Elstree from 1953. ==Later life and death==