When the movie was presented to the American censors, they asked for 35 cuts, and suggested a "moral" ending with Nell marrying the King!
Sitting in the balcony just before a performance Nell's maid exchanges increasingly insincere smiles with the Duchess's. At the end, she mouths something to camera, either censored or drowned out by music, and it seems to be: "Wretched bitch- ooh! excuse my language".
When Nell retrieves her hat from Royal Box, the Duchess of Portsmouth mouths something at her. It is the french word 'vache' or 'cow'.
Miles Malleson often wrote parts with himself in mind into his scripts. Here he plays Chiffinch, the ubiquitous secretary.