05/05/2016 18:41 BST

'Peaky Blinders' Season 3 Spoilers: Cillian Murphy Teases 'Darker' New Series

'What we're doing with Tommy now is a massive departure.'

'Peaky Blinders' star Cillian Murphy has promised fans a much darker turn for season three of the show. 

The actor, who plays Tommy Shelby in the BBC Two gangster drama set in 1920s Birmingham, has revealed the latest series will be a departure from the previous two.  

Cillian Murphy plays gangster Tommy Shelby in 'Peaky Blinders'

In an interview with Digital Spy, he said: "There's no point in just replicating what you've done before - you have to push it. But there were times where I was like... f**king hell."

While remaining tight-lipped about the specific details of the new series, Cillian continued: "What we're doing with Tommy now is a massive departure - certainly from series one, and from two - but that has to happen. Four or five years have passed in the characters' lives since we first met them, so you have to push it.

"The way we left the second series, the natural progression would've been to go to America - that's where you'd see bootlegging and Prohibition and all of that.

"But what [series creator] Steve Knight did was just take the opposite tack and go east, to get involved with Russia. That gives it a much more interesting flavour - it's much f**king darker and weirder and more interesting," he added. 

The first episode of the new series, sees a mysterious visitor turn up on Thomas Shelby's wedding day, who will put the entire Shelby family in harm’s way.

Paddy Considine has also joined the cast as a rogue priest, who has been described as "the definition of evil". 

Watch a preview of the new series in the video below...

Peaky Blinders airs tonight (5 May) at 9pm on BBC Two. 

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