John Landis was barely old enough to vote when he first came up with the idea for An American Werewolf in London. 18 year-old Landis was working as a production assistant in 1969 when he conceived the idea, but nobody wanted to make his script throughout the following decade. It wasn't until his other successes that he was able to move forward, just in time for the early '80s renaissance of werewolf movies.
The Blues Brothers
Producers originally pushed Landis to cast Dan Aykroyd as David and John Belushi as Jack. David Naughton was most recognizable from Dr.