The Hobbit Trilogy is a series of fantasy adventure films based on J.R.R. Tolkien's novel, The Hobbit. Benedict Cumberbatch provides the voice and motion-capture performance for the dragon Smaug, one of the main antagonists in the trilogy. The films follow Bilbo Baggins, a hobbit who embarks on a perilous journey with a group of dwarves to reclaim their homeland from the dragon. Cumberbatch's portrayal of Smaug adds a menacing and captivating presence to the films, making them a must-watch for fans of epic fantasy.