Netflix film Enola Holmes has sparked backlash from fans after a historical error was spotted.The Stranger Things star leads the Sherlock Holmes spin-off as the seminal detective’s younger sister, alongside Henry Cavill and Sam Claflin.Discussions began with the release of a new poster, which sees the characters set against 19th century London, which includes Big Ben and Portcullis House – the latter opened in 2001.The error was pointed out by graphic designer Daniel Benneworth-Gray, who