(Spectator Short Films documentary, 1941)

Fascinating look at the daily commute into London from the suburbs. Although it was filmed in 1941, the war doesn't really feature. Most of the buses seen are London Transport AEC Regent STLs.
First seen are two STLs in wartime livery, the first STL1928 (DLU287):

This London Transport trolleybus (with an STL in background) appears to be 144 (CGF144):

STL1909 (DLU264) is seen superimposed on an Underground train:

STL580 (AYV729):

Garage view including AEC Regent ST385 (GK3057):

Refuelling an LT:

More bus garage views include STL1312 (BYV557) and STL617 (AYV787):

STL1670 (CXX370):

STL1826 (DLU197), STL2138 (DLU137) and STL628 (BLH711):

AEC Renown LT79 (GH3837):

An LT and two STLs:

The LT is revealed as LT577 (GP3540):

STL1090 (CGJ82):

Another LT follows an STL:

STL1646 (CLE19) is followed by STL2356 (EGO392)

STL527 (AYV701):

Unknown LT:

STL2215 (DYL849)