(1936, Raymond Massey, Edward Chapman, Ralph Richardson et al)

Fascinatingly prescient science fiction film is lent additional power by its great age and therefore separation from our own time. Buses seen are a mix of elderly and then-new London Transport types, although the town depicted is a generic 'Everytown'.
Opening street scenes include this:

This AEC NS is seen in near darkness - I believe it's NS2273 (YU6222)

Parts of buses are seen in the crowd:

This shot of the rear platform seems to include registration YP6621, which would indicate an AEC K, K1107, or XP6621, which would be an AEC NS, NS925:

…but an LT class AEC Renown can't be precisely identified, other than to show it has an enclosed rear staircase:

No registration can be seen on this elderly 'decker caught in a bombing raid:

After the War has reduced the town to rubble, the older buses are used as homes and shops, and at least one has a wooden roof - it could be the bus seen above:


Registration XV6848 is seen on the rear of one, this could be the bus seen in the bombing raid.