This rare documentary by Irv Drasnin, called Shanghai, was filmed in the summer 1973 (Part 1 & Part 2). In one of the focus stories we follow Grandmother Wu, "of No. 9 Alley 74" 某某路74弄9号, located, it seems,
If the film shows locations truthfully, then this is Grandmother Wu's street:
This is her lane, No. 74:
This is her neighborhood market:
[And this is the vicinity:]
And this is the vicinity:
Where exactly are we? A typical low-rise shikumen/lilong neighborhood; a public bus runs along the tree-lined street right outside of it. The curvature of the alleys and the type of housing strongly suggested the old town – but friends pointed at this locally-made TV documentary that confirmed: this is Zhangjiazhai Road 张家宅路, off West Beijing Road and Shimen Road.
View west, from Shimen Er Lu; the tree-lined Beijing Road is going off into the distance on the left; Zhangjiazhai Road intersects the view horizontally, in the middle.
The site is now completely redeveloped and built up. Only the boundaries of the lots suggest the uneven path of Zhangjiazhai Road as it wove its way through the block.