The Big Job
(1965, Sid James, Dick Emery, Lance Percival)
Jon Price notes “Unofficial entry into the 'Carry On' series (same director, producer, scriptwriter and large part of cast) about recovering loot from a tree in a police station yard. Unidentified Eastern Coachworks bodied Bristol LS saloon during a scene in a new town. Picture shot at Pinewood so not sure where new town scenes filmed but would guess bus is United Counties or Eastern National.” Abu Tahir adds the locations used were Chalfont St Giles, Iver Heath and Fulmer in Buckinghamshire, and Bracknell, Berkshire, so this could be from Thames Valley: