The NASS video Los Angeles 1940s, Residential Area in color [60fps, Remastered] w/added sound is a processed version of this archived footage.
Starting at about
02:18 a movie camera points backwards from a vehicle driving down a road, pointed at the car behind but also showing few buildings and mountains in the background.
However on the left there is a large, notable building of some cubically-shaped classical architectural style with a large domed roof and possibly some large sculptures of human figures. It feels like it might be a religious building or a mausoleum.
It certainly looks like it might still be around an notable as a Los Angeles landmark.
Is it possible to identify this building and by extension the name of the road being driven on in this video?
For reference, there's a little bit more about NASS in PetaPixel's Colorized Footage of San Francisco Taken Four Days Before 1906 Fire