Ballad in Blue (1965, Ray Charles)

A small blind boy is taken on a bus journey through Central London. Seen first is a London Transport roofbox AEC RT on route 38 is seen:
David Thrower reports RTL1050 (LLU829) was used in filming, I would guess for the interior scene, and also for the scene where the children step off the bus:
Additional trivia: Ray Charles, who played the bus driver in Spy Hard, drives a dodgem car at the funfair in this movie.