(1977, Richard Strauss)

Has scenes set in London that are at least partly filmed in Fairhaven Village, Bellingham, Washington State. The 'London' bus seen in three scenes is a 1948 AEC Regent III with Park Royal body, ex-Morecambe & Heysham Corporation Transport 23 (JTE549), but here wearing fleet number 24.

Maybe it would have been better to cover up the name on the side:

….but the Austin FX4 taxi in a scene ostensibly under attack by V1 rockets, as the film calls them? (the V2 was a rocket, the V1 had more in common with modern cruise missiles)