In 2009–2010, Polgár was musical advisor and singing director, for the film "Of Gods and Men" by Xavier Beauvois about the Murder of the monks of Tibhirine (Grand prix du Festival de Cannes in 2010, 2010 Cannes Ecumenical Ecumenical Jury Award, 2010 Cannes Festival Éducation Nationale Prize, with Lambert Wilson in the role of superior Christian de Chergé and Michael Lonsdale in the role of Brother Doctor Luc).