The blockbuster, which is currently filming in Donegal, also stars Ciaran Hinds and Colm Meaney as well as Kerry Condon, Jack Gleeson, Desmond Eastwood, Sarah Greene, Conor MacNeill, Seamus O’Hara, Valentine Olukoga, and Mark O’Regan.
Set in a remote Irish village, In the Land of Saints and Sinners follows a newly retired assassin who finds himself drawn into a lethal game of cat and mouse with a trio of vengeful terrorists.
In one newly released picture, Neeson is seen pointing a gun at the camera, while a second photo shows Neeson and Hinds standing on a cliff side with Neeson aiming a different gun out towards the sea.
The screenplay was written by Mark Michael McNally and Terry Loane, with revisions by Matthew Feitshans.
Neeson and Hinds shared the big screen in Martin Scorsese's film Silence (2016) and John Boorman's Excalibur in 1981.
Filmmakers had previously sent out a casting call for GAA players to appear as extras in the flick.
Casting agents searched for a 1970s look for their background actors, with filming of a scene featuring a GAA match taking place in Donegal earlier this month.
A spokesperson for movieextras.ie said: “What we are looking for is 1970s hairstyles (sideburns, moustaches, beards and longer hairstyles all welcome), GAA players, men and women of all ages, good availability (continuity roles will require multiple shoot days!)
“We'd love if you could let your hair and/or beard grow - unleash your inner 70’s soul! If you're able to grow a moustache/sideburns/beard or are willing to swap a beard for the classic 70s moustache and sideburns - we want to hear from you! No ‘short back and sides’ haircuts please.”
In addition to male GAA footballers, the casting team were also on the lookout for extras to play coaches and referees.