Confessions of a Window Cleaner
(1974, Robin Asquith, Anthony Booth)
Stupid film but probably the least worst of the four in the series, opens with a distant London Transport DMS-type Daimler Fleetline:
There's a street scene with two passing coaches. Firstly we see this Duple Dominant-bodied Bedford YRQ:
…followed by a Ford R226/Duple (anyone recognise the coach company?):
