David Thewlis has had a job.
David Thewlis . His most commercially successful role to date has been that of Remus Lupin in the Harry Potter film series . Other notable performances include the films Naked ( for which he won the Best Actor award at Cannes Film Festival ) , Dragonheart , Kingdom of Heaven , The Boy in the Striped Pyjamas , The Theory of Everything , Black Beauty , and Macbeth ( in which he played King Duncan ) . The Theory of Everything (2014 film) . The film stars Eddie Redmayne and Felicity Jones with Charlie Cox , Emily Watson , Simon McBurney , Christian McKay , Harry Lloyd and David Thewlis featured in supporting roles .