The way the BBC keeps knocking out these little biopics about the lives of various household names (John Lennon, Gracie Fields, Margot Fonteyn etc), you'd think there was nothing simpler than to get inside the mind of some complex public figure, deftly sketching in a bit of socio-historical background on the side with a bit of help from the props and archive department. And, as this low-rent effort to drill into the emotional life of the beloved comic actress Hattie Jacques amply demonstrated, you'd be completely wrong.