Following is the first movie Christopher Nolan ever directed, a mesmerizing low-budget effort that introduced the world to the genius who will later give us Memento, Inception, The Dark Knight, and many other classics. Shot in "extreme" conditions to quote Nolan himself, for just over £3000, it had to be filmed in the span of a year on Saturdays only and in friends' houses. But almost none of that is visible in the sharp camera work, the magnificent acting (most of it was first or second takes), and the twisted script. It tells the story of an unsuccessful writer (The Young Man) who tries to find inspiration in following random people in the street, and doing it via strict rules. One day he follows a man in a suit (Cobb), who catches him and becomes intrigued by him. It turns out that Cobb has his own fascination with people's intimate lives, of criminal nature, which he lets The Young Man into. Using the same non-linear plot technique as in Memento, this movie is halfway between a thriller and a film noir. The inspiration for it came when Nolan's own apartment in London was robbed, and he was fascinated by the act of strangers going through his personal items. If you take into consideration the conditions of its making, this movie is a masterpiece.