Notes from SteveA:-
"The Mindbenders (1962, Dirk Bogarde). I was fascinated by the way British Rail loco 6015 King
Richard III morphed into 5056 Earl of Powis under emergency braking.
The two Oxford buses (hence my interest) are H909 (PWL420), a 1951 AEC
Regent III/Weymann, and 968 (968CWL), a 1958 AEC Regent V/Weymann
similar to that seen from above in another Bogarde movie 'Accident',
which I watched last night for the first time in years. The third
decker in the sequence could be a Regent III or a V with exposed
radiator. In 1962 the Oxford fleet was entirely AEC, except for four
Dennis Lolines (with AEC engines)"