Glaring historical inaccuracy spotted on poster for Netflix's 'Enola Holmes'

The first poster for Netflix’s Enola Holmes has been criticised for being historically inaccurate after a glaring anachronism was spotted in the design.

The film, set in 1884, revolves around Millie Bobby Brown’s Enola, the younger sister of acclaimed sleuth Sherlock Holmes, portrayed by Henry Cavill.

It’s filmed and set in London so – unsurprisingly – the artwork leans into action adventure film’s period and location setting.

Read more: Biggest movie poster fails of 2019

Check it out below. Can you spot the error?

Did you spot it?

If you look closely you can see Portcullis House peeking out to the right of Big Ben. Part of the Parliament Estate, Portcullis wasn’t completed until 2001, some 117 years after the film is set. Elementary.

Read more: Everything coming to Netflix in September

Freelance book designer Daniel Gray was the first to point out the image’s flub, sharing a close up on Twitter, musing that the mystery of the the film might “revolve around the sudden appearance of Portcullis House in 19 Century London.”

One of his followers responded: “I HATE it when stuff like this is missed... so simple, but so annoying...”

Based on the beloved book series by Nancy Springer, Enola Holmes is, as the blurb explains “a dynamic new mystery-adventure that introduces the world’s greatest detective to his fiercest competition yet: his teenage sister. The game is afoot.”

Enola Holmes lands on Netflix on 23 September.