Daniel Radcliffe in Harry Potter & the Prisoner of AzkabanHARRY POTTER & THE PRISONER OF AZKABAN

Anyone interested in the distinction between routine direction and inspired direction - anyone who has ever wondered what, exactly, it is that a director brings to a movie - should compare Chris Columbus' first two Harry Potter films with Harry Potter & The Prisoner of Azkaban, helmed by Alfonso Cuaron; Columbus' films are the work of a by-the-numbers craftsman, and Cuaron's is the work of an artist. (Which isn't to say that everyone will prefer Cuaron's style; many people would rather dine on Big Macs than filet mignon.) Cuaron isn't quite able to overcome the series' built-in limitations - the familiarity of the storytelling arc, the "surprising" character reversals that aren't really much of a surprise, the fact that all three movies are too damned long - but for those viewers, like me, who've never been overly enamored of the Harry Potter film series, Azkaban is as fine an entertainment as you could hope for, a visually audacious work with moments of true magic, and it improves on Chris Columbus' vision tenfold.

Al Pacino and Robin Williams in InsomniaINSOMNIA

In Christopher Nolan's moody, atmospheric thriller Insomnia, based on a 1997 Norwegian film of the same name, Al Pacino plays Will Dormer, a famed Californian detective now under investigation by Internal Affairs. To escape the surrounding publicity, he and his partner (Martin Donovan) are sent to a remote Alaskan town to investigate the murder of a teenage girl, found beaten to death by a killer who apparently went to great lengths - washing her hair, trimming her fingernails - to maintain the dead girl's beauty. Dormer finds his suspect relatively early, but after he becomes the catalyst in a tragic shooting accident, Dormer is increasingly haunted by feelings of guilt and remorse - egged on by the endless Alaskan sun, which shines even at night - and finds the tables turned on him; the suspected killer (Robin Williams) has witnessed the shooting, and threatens to end Dormer's career if he is fingered as the girl's killer.