Three John's who had a 'B' movie aesthetic and managed to produce, drama, humour , action, cult status and star quality in their work; and they all had one SCFi/Horror classic as well.
JOHN LANDIS
Blues Brothers-An American werewolf in London-Trading Places
an American werewolf in London
JOHN CARPENTER
Assault on Precinct 13-The Thing-Escape from New York
the thing
JOHN MCTEIRNAN
Die Hard-Predator-The hunt for Red October
predator 'anytime'