Here’s a late example of the Will Hays phenomenon. This time the comic actor is an incompetent fire captain who accidentally invents a new type of firefighting foam. Then his fire truck is stolen, and the usual Hays-style British comedy ensues.
According to Wikipedia, Where’s That Fire? had been thought to be a lost film for many years before it was rediscovered by the BBC in 1975. I’m glad someone took the time to add it to the Internet Archive’s Feature Films collection so it could be part of the IA Top 100.