An American Werewolf In London (1981)- Blu-ray - Two American college students on a walking tour of Britain are attacked by a werewolf that none of the locals will admit exists. An American Werewolf in London is a 1981 British-American horror comedy film written and directed by John Landis, and starring David Naughton, Jenny Agutter, and Griffin Dunne. The film's plot concerns two young American men, David Kessler (played by Naughton) and Jack Goodman (played by Dunne), attacked by a werewolf on a backpacking holiday in England. With Jack killed, David is taken to a London hospital, where his disturbing apparitions of his deceased friend informs him that he is a werewolf and will transform at the next full moon. Filming took place in London, Surrey, and Wales.