Peaky Blinders season 6 spoilers follow.
Peaky Blinders fans have sorely missed Helen McCrory as Aunt Polly in season six.
Helen passed away last year before the latest season began filming, but the impact of the matriarch of the Shelby family has been felt throughout the series.
As the final ever episode of the series airs on Sunday (April 3), the show's creator Steven Knight has opened up about the spin-off film and the important role that Polly will continue to play in the franchise.
In an interview with the Radio Times, he explained: "The death of the human being is the tragedy. The death of the character is something you can deal with, and hopefully we dealt with it in a suitable way.
"Helen was so brilliant. When anything happened in the rest of the series, I wanted people to think, 'What would Polly say?'
"It's like a family when someone passes away, their opinion remains in the house. Polly's opinion is going to last."
Knight was asked if the same approach would be taken in the movie and he replied: "Absolutely. She's such a fundamental part of what Peaky is; her presence rules."
In the first episode of season six, Helen's death was written into the show as Aunt Polly was killed as part of an assassination attempt on a political figure.
The family then held a poignant memorial for both Polly and McCrory, with a portrait of Polly in a carriage as it burst into flames.
McCrory starred in the first five seasons of the BBC One drama and has appeared in flashbacks via archive footage.
Peaky Blinders series 6 airs on BBC One and BBC iPlayer.