Question: The 2015 film starring an actor whose debut was in the television series White Christmas was directed by whom?
Sentence (from "Jon Opstad"): His film and television work includes scoring two episodes of Charlie Brooker's critically acclaimed dystopian television drama "Black Mirror", including the 2014 feature-length special White Christmas, starring Jon Hamm, Rafe Spall and Oona Chaplin.
Relevant evidence: No