Harry Potter et le Prisonnier d'Azkaban

Alfonso Cuarón's masterful adaptation does the source material immeasurable justice by exploring its underlying concepts in an intelligent manner. Of course, it certainly helps that the aesthetics of the film are incredible, the acting remains stellar (and the trio of young actors handle their roles admirably), and John Williams offers an amazing (and eclectic) score. Character development is superb - Steve Kloves penned a great script.

First-time and young viewers will likely enjoy the film for its merits based on plot and 'adventure' alone, but it takes multiple viewings and a critical eye to enjoy the abstract ideas and nuances. Cuarón himself credited the source material as being laden with real-world issues: oppression, racism, loneliness, power, friendship, justice and so forth.

This is the Harry Potter film that stands on its own and as a tremendous cinematic achievement. It challenges viewers and yet doesn't patronize them or attempt to offer answers to all of the questions presented. For instance, the ending is bittersweet at best and retains a healthy amount of ambiguity.

If you've never read the books or understood the acclaim of the series as a whole, watch Cuarón's 'Prisoner of Azkaban' and you'll understand why this entry is clearly the zenith of the seven.