Blooper

In the beginning, when Verity is being assisted in waxing her legs, she is clearly still wearing stockings (you can tell by the color of her legs and the difference between most of the leg and the top, where the welt distinguishes the terminus of the stocking. A stocking would prevent wax from fully adhering to the leg hair and nullify its effectiveness.

Hallam works in the Balmoral Hotel at the East end of Princes Street, yet all shots of the staff entrance to the hotel are clearly the Caledonian Hotel at the West end of the Street.