Question: Which film has the director who is older, Rock 'N' Roll Nightmare or 21 Grams?
Sentence (from "Alejandro González Iñárritu"): The following year, he won a second Academy Award for Best Director for" The Revenant"( 2015), making him the third director to win back- to- back Academy Awards, and the first since 1950.
Relevant evidence: No