The Spy Who Came in From the Cold (1965, Richard Burton, Claire Bloom, Robert Hardy et al)

In one scene several London Transport Leyland PD2 RTLs pass behind Burton; also seen is an RT. Bloom travels supposedly from Wormwood Scrubs prison in either an RT or RTL:
Several Routemasters and RTs as the camera follows Burton along the street, including then brand-new London Transport AEC Routemaster RM2211 (CUV211C) on service 6A to Waterloo (thanks Colin Read).
Burton catches a bus from South Kensington tube station and is seen getting off Routemaster RM2200 (CUV200C). Colin Read notes it's blinded for service 207A to Hayes Station (although it was also in use on 6A from new) and appears to carry a full set of adverts for London Transport. The nearside is for 'London Transport at London's Service' and the rear is for the 'Round London Sightseeing Tour' - Colin speculates whether this was required by London Transport.
When Burton travels to Holland, several tractor-and-trailer Ford F350 buses are seen as he leaves the aircraft. A similar bus transports Robert Hardy from the airport. (from late night notes by Alan Sinclair and Scot Fergie, and an id by Daniel Dey)