Answer
McTavish appears in all three installments of Peter Jackson's "Hobbit" film trilogy. The films, "An Unexpected Journey" (2012), "The Desolation of Smaug" (2013), and "The Battle of the Five Armies" (2014), chronicle Bilbo Baggins' quest to reclaim the Lonely Mountain from the dragon Smaug, with McTavish playing a pivotal role throughout the series.