Goudie has it
Hatfield it is on the occasion of first display to be held by the Royal Air Force Reserve Flying Club.
The aircraft flying by is G-ACDP the Saro Cutty Sark of A.S.T. (Air Service Training) from Hamble. This aircraft remained in service used by No 3 E & RFTS until 1942.
not the prettiest of aircraft IMHO.
The First Flight of SARO "Cutty Sark" can be found here:
YouTube - SARO Cutty Sark first flight
The John Williams clue is that he wrote the music for Spielberg's film "Saving Private Ryan" ("Hymn to the Fallen") and Hatfield featured in the film because it was where the ruins of the fictional French town of Ramelle were created and used as location shots for the film.
Over to you Goudie