An American Werewolf in London

An American Werewolf in London is a movie starring David Naughton, Jenny Agutter, and Joe Belcher. Two American college students on a walking tour of Britain are attacked by a werewolf that none of the locals will admit exists.
American tourists David and Jack are savaged by an unidentified vicious animal whilst hiking on the Yorkshire Moors. Retiring to the home of a beautiful nurse to recuperate, David soon experiences disturbing changes to his mind and body.