Carry On Doctor (1967)

Continuity mistake: Jim Dale and Anita Harris think that Barbara Windsor is going to jump off the roof and race across the road into the nurse's block. We see Anita Harris is wearing dark seamed hosiery as she runs up the stairs. A few minutes later she hangs down from the roof and the seams have disappeared from the backs of her legs. (00:59:00 - 01:01:55)

Dr James Kilmore: Just as I thought. You fell on your coccyx.
Francis Bigger: I did not. I fell on my back.
Dr James Kilmore: Your coccyx is at the base of the spine.
Francis Bigger: Well I've never heard it called that before.

Trivia: If you look between the lifts in the foyer, you can see a portrait of James Robertson Justice, who starred in the "Doctor" films that were produced by Peter Rogers' wife, Betty E. Box, and directed by Gerald Thomas' brother, Ralph.