As anyone who saw his huge audience at Esquire Townhouse last night will attest, Cillian Murphy fans are pretty dedicated. And when it comes to Peaky Blinders, they know what they're talking about.
And there's been one burning question on their mind as they wait for series four: does Thomas Shelby actually eat?
Think back to the previous three instalments of the BBC drama and whether you've actually ever seen Cillian Murphy's character Thomas Shelby dine down on some grub...
While we've all witness him drink and smoke (a lot), eagle-eyed viewers have noticed that Tommy Shelby never seem to eat...
Taking to Twitter, one person wrote: "Does Tommy eat and drink anything other than cigarettes and whiskey?" while someone else said: "As of two nights ago I'm all up-to-date with PEAKY BLINDERS. Pretty sure I didn't see Tommy Shelby eat anything in 18 episodes."
After watching series three, episode three where Tommy takes his son Charlie away in the caravan, another added: "OMG did we just see Tommy eat? I mean, it's a leaf, but that's the first thing he's munched in 15 episodes! #PeakyBlinders"
Anyway, Cillian Murphy has finally addressed why Tommy Shelby doesn't eat – and it's simply because he doesn't have time.
Speaking to World Screen, the Dunkirk actor said: "It seems like he never sleeps or eats.
"In fact, over the whole four seasons so far, we never see Tom Shelby eat – a morsel never enters his mouth!"
He continued: "He is all-consuming and obviously the nature of television – being that you are shooting so many episodes and so many setups per day and you have so many lines to learn – means that it does take over your life, but in a brilliant way.
"It's what every actor would want."
It comes after the first official trailer for Peaky Blinders series four dropped and hinted at Polly's possible demise...
According to a tease from the BBC, series four opens with Tommy receiving a mysterious letter on Christmas Eve which tells him that the Peaky Blinders are in "danger of annihilation".
"As the enemy closes in, Shelby flees his country house and returns to the streets of Small Heath, Birmingham where a fight for survival begins..."
Speaking to radio station Today FM in his native Ireland, Cillian said: "In the classic gangster arc, the last season was sort of all about the wealth, the house and all that material stuff.
"This season is sort of a return to the roots. That's about as much as I can reveal."
Peaky Blinders focuses on a ruthless gang run by Murphy's character Thomas Shelby in post-World War I Birmingham, who sewed razor blades into their flat caps (hence the name).
Expect some high-profile new additions to the cast in series four, too.
Adrien Brody – yes, actual Oscar winner Adrien Brody – will join the show in a part written especially for him, with Aidan Gillen (Littlefinger from Game of Thrones) also on board.
"Adrien plays the threat to the family, and possibly the biggest they'll face," said Peaky Blinders creator Steven Knight.
"Aidan is a sort of, in the face of danger it's like pressing the nuclear button – you get him to help. Let me put it that way. We have been very fortunate to get two really legendary actors.
"We get a lot of actors who want to be part of [Peaky Blinders] which is great but we try not to make it a 'spot the star' sentiment, and just get actors who are really perfect for the role."
He added: "Tommy's redemption might take a little bit longer. It's the family being forced back together".
A premiere date for Peaky Blinders series four is yet to be confirmed with the BBC simply saying it's "coming soon", but we're expecting it to return on BBC Two later this autumn.
Check out what's happening this weekend at Esquire Townhouse here.