Aidan Gillen and Tommy Tiernan are to star in a biopic of the late Irish comedian Dave Allen, with The Game of Thrones star cast in the lead role and Tiernan playing Allen's father. 

Dave Allen at Peace begins filming in Northern Ireland later this month, with RTÉ and Northern Ireland Screen partners on the hour-long BBC Two film.

The BBC says Dave Allen at Peace "will explore how Dave's comedy genius was shaped by the tragic loss of his father, his brother… and his finger. 

Dave Allen is considered to be one of the godfathers of modern stand-up

"How he survived decades of the Roman Catholic Church's wrath, death threats from the IRA and a ban by Irish and Australian TV, only to have his television career end in controversy when he used the f-word in an innocuous joke."

Gillen's Game of Thrones co-star Conleth Hill will play Allen's brother John, with the cast also including Line of Duty's Joanne Crawford as their mother Jean, Game of Thrones' Ian McElhinney and Pauline McLynn.

Dave Allen at Peace was written by Stephen Russell, whose credits include We're Doomed: The Dad's Army Story and Peaky Blinders; and will be directed by Father Ted and Quacks director Andy De Emmony.

Initially following his father, former Irish Times editor Cully Tynan O'Mahony, into journalism, Allen later became a Butlins Redcoat and then embarked on his trailblazing comedy career.  

Best known for his hit shows Tonight with Dave Allen and Dave Allen at Large, Allen - born David Tynan O'Mahony -  became a household name in Ireland and the UK in the 1970s and is considered to be one of the godfathers of modern stand-up. He died in his sleep at his West London home in March 2005 at the age of 68.