The Irish films Calvary and Frank are to receive their world premieres at the prestigious Sundance Film Festival in Park City, Utah next month.

Reuniting Brendan Gleeson with The Guard director John Michael McDonagh, black comedy-drama Calvary tells the story of a priest who battles the dark forces in his small country town.

Calvary also stars Marie-Josée Croze, Isaach De Bankolé, Aidan Gillen, Domhnall Gleeson, Dylan Moran, Chris O'Dowd, Kelly Reilly, Pat Shortt and David Wilmot.

Frank is the new offbeat comedy from director Lenny Abrahamson and stars Michael Fassbender, Domhnall Gleeson Maggie Gyllenhaal and Scoot McNairy.

It tells the story of "a wannabe musician who finds himself out of his depth when he joins a maverick rock band led by the enigmatic Frank - a musical genius who hides himself inside a large fake head".

Frank is loosely inspired by Frank Sidebottom, the persona of the late cult musician and comic Chris Sievey.

Calvary will be released on April 11, 2014. Frank will be released on May 2, 2014.

Both films were supported by Bord Scannán na hÉireann/the Irish Film Board (IFB).

The Sundance Film Festival runs from January 16 to 26.

Commenting on Frank's Sundance selection, director Abrahamson said: "It's wonderful news that Frank has been selected for Sundance. I can't think of a better place for this film to begin its life."

Producer Ed Guiney said: "Sundance is the perfect place to launch the worldwide campaign of this great new film from Lenny Abrahamson. And it's great to be there with fellow Irishmen and collaborators, Michael Fassbender and Domhnall Gleeson."