Thomas Shelby (Cillian Murphy) had smoked over 3000 cigarettes on the show just by the end of Season 2. His current counts would sum to about 6000 cigarettes on set. However, he has informed reporters that he smokes herbal cigarettes (they don't contain tobacco or nicotine, and hence aren't addictive) and the creator, Steven Knight joked that the herbal ones are so weak that they would "probably count as one of his five-a-day".

David Bowie was a huge fan of the show and gave permission for music from his final album to be featured in Series 3. Steven Knight, the shows creator, learned of Bowie's interest after the singer sent a photo of himself with razor blades in his cap to lead actor Cillian Murphy. Knight revealed: "I got in touch with his people, who came back straight away and said he was a big, big fan." Bowie later sent a representative from his label to provide an early hearing of his final album Blackstar a week before its existence was made public. "And then on the following Tuesday we heard that he'd passed away. It seems that his people were keen to establish that we could use it before he died."

Michael Gray (Finn Cole) and John Shelby (Joe Cole) are brothers in real life.

There are more canals in Birmingham than in Venice

Tom Hardy (Alfie Solomons) and Charlotte Riley (May Carleton) are married in real life. Their first child was born in October 2015.

PJ Harvey, Nick Cave & The Bad Seeds, Arctic Monkeys, Radiohead, Royal Blood, The Black Keys/Dan Auerbach, The White Stripes and Frank Carter and the Rattlesnakes make up most of the soundtrack to the show.

Although set in 1920s Birmingham, the show is mostly filmed around Liverpool and Merseyside and in London. Wherever possible and appropriate, scenes are shot in Birmingham and the West Midlands (such as The Black Country Museum in Dudley) however there are very few areas of Birmingham left that still resemble the period environment required.

This is the fourth time Cillian Murphy and Tom Hardy have worked together.

While the show has often received criticism for the seemingly inaccurate accents, much of the cast and crew have confirmed that they are historically accurate. The 1920's dialect for Birmingham, England was said to be slightly different. Helen McCrory has even stated the accents are authentic 1920's Birmingham dialects. Despite this, many UK viewers believe that the accents are watered down versions of proper dialect to appeal to US viewers.

Despite the shows claims, the Peaky Blinders were strongest in the 1890s. By the 1920s the predominant gang in Birmingham was 'The Birmingham Gang' which had its roots from the pre-war 'Brummagem Boys' gang.

The show's title is derived from the gang practice of wearing flat "peaked" caps, which they could then see under due to the shorter brims compared to the hats usually worn by more distinguished gentlemen.

The real Peaky Blinders were unlikely to carry razor blades in their hats since in the 1890s, when the gang was really present, they were considered a luxury item and too expensive for the gang to own. The idea of the razor blades hidden in caps has its roots in John Douglas' novel 'A Walk Down Summer Lane'.

Benjamin Zephaniah who plays Jerimiah Jesus/Jimmy Jesus is actually from Birmingham, this is his debut as he is actually a poet.

The theme song for Peaky Blinders, Red Right Hand was written by Nick Cave & The Bad Seeds. This song also appears in The X-Files (1993), Dumb and Dumber (1994), Hellboy (2004), the Scream trilogy and Jack Irish: Bad Debts (2012) and the other Jack Irish TV movies and series.

Cillian Murphy and Tom Hardy both play a Batman villain. Cillian plays Scarecrow and Tom plays Bane.

Actor Cillian Murphy is from Ireland and plays Thomas Shelby from England. Actress Annabelle Wallis is from England and plays Grace Burgess from Ireland.

Tommy Flanagan is only thirteen years older than Paul Anderson, who plays his son.

A Virtual Reality game is in the works.

Tom Hardy joins the show during season 2. This marks the third time that Cillian Murphy and Tom Hardy have been in the same production. They've also appeared in Inception and The Dark Knight Rises together. They would once again join up in Dunkirk.

Cillian Murphy's character's full name is Thomas Michael Shelby, however in episode #1.6, the letterhead on his company stationary shows his name incorrectly as Mr. Thomas J. Shelby.

Birmingham is known as the city of a thousand and one trades and bandages. It is also home to the factory which made the whistles used on the battlefields of the First World War which the character Thomas Shelby returned from in the first episode of series one. The Thomas Hudson factory, which is still going strong today, made the whistles used on the Titanic.

The series shares several actors with Game of Thrones, and a pair with The Dark Knight Rises. Aberama Gold is played by Aidan Gillen, who also plays a CIA Operative after Bane, played by Tom Hardy, in The Dark Knight Rises. More famously, Gillen also plays Petyr "Littlefinger" Baelish in Thrones. Other Blinders actors also in Thrones include the following: Noah Taylor plays Darby Sabini in Blinders and Locke in Thrones; Alexander Siddig plays Ruben Oliver in Blinders and Doran Martell in Thrones; Richard Brake plays Anton Kaledin in Blinders and The Night King in Thrones; Donald Sumpter plays Arthur Bigge in Blinders and Maester Luwin in Thrones.

The three Radiohead songs featured in the original soundtrack of the third season (You And Whose Army, I Might Be Wrong and Life In A Glasshouse, In this order) are from the same album, Amnesiac. It is the fifth record of the band from Oxford.

Both Annabelle Wallis (Grace) and Sam Neill (Inspector Campbell) appeared in the tv-series "The Tudors". Wallis portrayed Jane Seymour (season 3 and 4), while Neill portrayed Cardinal Wolsey (season 1).

In season three, actors Jan Bijvoet and Gaite Jansen both play characters with a Georgian background. Being from Belgium and the Netherlands, both actors speak Dutch as their main language, which can be heard if you pay close attention to their played Russian accents.

In season 4, episode 1, Tommy Shelby mentions leaving food and drink out for Santa and Rudolph. The show takes place in the '20s. Rudolph didn't make his first appearance until '39, and Santa has been known exclusively as Father Christmas in the UK until the influence of US TV and movies created a predominance of the name "Santa" in the younger generations beginning in the 1990s.

Paul Anderson and Tom Hardy were in the film The Revenant (2015) together.

Paul Anderson and Tom Hardy both were in Legend. Where Hardy played gangster twins Krays, who terrorized London in 60's. Anderson played gang member Albert Donaghue.

Tom shelby drinks whiskey 213 times in the series.

Finn Cole is in the tv show Animal Kingdom (2016--) based around a modern power family, not unlike Peaky Blinders, that is overseen by an older female figure known as "Smurf".

Luca Changretta, played by Adrien Brody is an Academy Award winner for Best Actor in a Leading Role for his role in the movie The Pianist. Alfie Solomons, played by Tom Hardy, has also been nominated for an Academy Award for Best Actor in a Supporting Role for his role in the movie The Revenant, but unfortunately was beaten to it by Mark Rylance for his role in Bridge of Spies. (Mark Rylance and Tom Hardy soon worked together in 2017 on Nolan's latest motion picture: Dunkirk).

Both Joe Cole and Aimee-Ffion Edwards have worked on Skins, however in separate series and not having met before.

Both Annabelle Wallis (Grace) and Kate Phillips (Linda) have played Jane Seymour in a TV series. Wallis in the Tudors and Phillips in Wolf Hall.

Charlie Murphy (Jessie Eden) & Sophie Rundle (Ada Shelby) also worked together on Happy Valley (2014) as Ann Gallagher & Kirsten McAskill respectively.

Cillian Murphy's character has a bag put over his head in the first episode of Season 2... This is a similar look to his Scarecrow character from Dark Knight

Tom Hardy and Charlotte Riley are new to series 2, Riley being a love interest of Thomas Shelby, Hardy and Riley have been married since 2014.