The sequence starts looking down on Ching Tak Street. The building at the end of the road, along Tung Tau Tsuen Road, is now the CCC Kei Heep Secondary School - whether it had the same name back in 1972 I don't know, but at least it is still there and allows the positive identification of this location.
Autostitch has done a pretty good job at merging these screen grabs considering the camera was panning in a rather weird angle (up and to the left). The whole estate has since been redeveloped into high rise accommodation. The carpark seen in the lower picture has since been turned into a couple of school campuses and a community centre.