The Ragman's Daughter (1972, Simon Rouse, Victoria Tennant, Patrick O'Connell)

Set in Nottingham. Early in the movie Tennant and Rouse board Nottingham City Transport 36 (36ATO), a 1959 Leyland Titan PD2/40 with Metro-Cammell body:
In a later street scene, O'Connell steps off Nottingham 492 (JTV492E), a 1967 Leyland Atlantean PDR1/2 with MCW body to Nottingham's specification:
As he crosses the road, he's passed by a Harrington-bodied AEC Reliance of Barton Transport, and several other Nottingham 'deckers can be seen in the background:
Unclear what this parked Plaxton coach is - this is all you see, the fleetname is 'xxxxxx Roadliner':
Tennant and Rouse also ride on and get off Nottingham 42 (42ATO), another 1959 Leyland PD2/40:
A night view of an early Atlantean or Daimler Fleetline in traffic: