Withnail and Us charts the journey of cult in culture through an exploration of British cult films and their fans. It is about our bizarre and enduring fascination with once obscure or shocking movies, from A Clockwork Orange to The Wicker Man. What is it about certain films that provokes such obsessive fan devotion? What impells people to remote locations in search of filmic relics? Why do they gather in groups to re-enact scenes learnt by heart? Is any film worth re-viewing over 100 times?