Eoin’s new project – Cu Chulainn (maybe it’s in the film Hound which is mentioned in IFTN? “The film’s tag line is “Born to Kill, Dying to Defend”.)
Think it’s probably Cú Chulainn: The Sacred Island (which has Gary Shore directing) rather than Hound. Randomly my google-fu has turned up another Cu Chulainn film with Michael Fassbender involved.