Georgina is seen in a red wig and large hat, then a moment later is seen through a car windscreen she has a beret on top of blonde hair, then a moment later she's back in the wig and large hat.
When Ricky comes out of Joyce's house just before dusk the house lights are on - no blackout and a passing police car and taxi don't have light shields.
Betty Jones was actually a Welsh girl from South Wales born in 1926.