Holywood actor Jamie Dornan is set to star in a film about the notorious 1983 Maze prison breakout.
Thirty-eight republican inmates fled the maximum security facility in September 1983 in the biggest prison break in British or Irish history.
Nineteen were recaptured within a short period, but the rest got away.
The escapees included Old Bailey bomber Gerry Kelly, now a Sinn Fein MLA, who went on to write a book about the escape.
Read more: Warders' disgust as Kelly offers signed Maze escape book as Valentine's prize
Warder James Ferris died of a heart attack after being stabbed.
Two others were shot but survived.
The mass escape was described at the time by Prime Minister Margaret Thatcher as "the greatest incident in British prison history".
The film is set to be directed by three-time Oscar nominated writer/director Jim Sheridan and is called H-Block.
It will be produced by Dylan Sellars.
According to Deadline, Murphy stars as the head of the ring of IRA prisoners who has earned the respect of the prison guards and wants a life of peace.
Dornan will play a violent prisoner who starts discovering weaknesses in the prison and is one of the last to agree to escape and when he does he leaves with a vengeance on the way out.
It's understood Brosnan is in talks to play the warden of the prison who is pitted against the escapees.
The film will see Dornan and Murphy teaming up again after they starred together in Anthropoid which centred on the plot to kill SS beast Reinhard Heydrich, one of the architects of the Holocaust.
H-Block is the second film to be in production about the Maze breakout.
'Maze' is currently in post-production and its makers were accused of "romanticising the violence" of the breakout.
The Irish-Swedish co-production is being funded by the Irish Film Board (IFB), Film Vast and RTE, with Cork County Council and Cork County Council Arts Offices providing regional support.
Written and produced by Stephen Burke it was shot in the decommissioned Cork Prison and around Cork city, and stars Martin McCann, Tom Vaughan-Lawlor and Barry Ward.
It is due for release on September 22, 2017.
Belfast Telegraph Digital