Question: Robert Mackenzie is an Australian supervising sound editor, he is known for which critically acclaimed biographical war-drama film, directed by Mel Gibson and written by Andrew Knight and Robert Schenkkan?
Sentence (from "Sylvain Bellemare"): " (2008), "Incendies" (2010), "Monsieur Lazhar" (2011), "Gabrielle" (2013) and "Endorphine" (2015).
Relevant evidence: No