Pictures 1,3 and 5 have examples of the Leyland 'Leopard' / Plaxton 52 seat 'dual purpose' (can be used as both a coach or a bus) vehicles, picture 2 is a Daimler 'Fleetline' / Alexander 77 seat single door or 75 seat double door bus that typified the style of double deckers purchased after the compny ceased building buses to their own designs, and picture 4 is a Leyland 'National', the integral 'chassisless' design seen in almost every constituent company of the country's National Bus Company which was seen as a design to be used on amost all routes, replacing obsolete single - and double - deck vehicles. "One day all buses will be like this" ran one of the advertisements for the National - a promise thankfully broken.
It is difficult to see where the pictures are taken, this was a time when Birmingham had become "Modern", "Spacious" and "Vibrant" (i.e. they had bulldozed the old buildings we loved and appreciated, and replaced them with concrete and glass boxes) which the film is trying to portray, but picture 1 is Bristol Street (Horsefair) / Smallbrook Queensway traffic island, with Holloway Head behind the camera; and picture 2 looks like the Aston Expressway.