A24 ; Telefilm Canada, Film4, and Bord Scannán na hÉireann/the Irish Film Board in association with Ontario Media Development Corporation and Filmnation Entertainment ; an Element Pictures/No Trace Camping production in association with Duperele Films ; directed by Lenny Abrahamson ; screenplay by Emma Donaghue ; produced by Ed Guiney, p.g.a., David Gross