Insomnia (2002)

Definitely not Nolan's best but probably my favourite (at least tied with 'Batman Begins') because I love the Norwegian original so much AND the subtle changes Nolan made with it, as well as what the three stars (Al Pacino, Robin Williams--in his first villainous role, I believe, and Hilary Swank--in probably my favourite performance of hers, next to the downright decadence and naughtiness she displayed in 'The Black Dahlia') bring to the table here. I greatly enjoyed the five short extras on my DVD (a double-sided disc I bought years ago that has 'The Devil's Advocate' on the other side, yet unwatched): a conversation/interview of Nolan with Pacino; 'Day for Night: The Making of...'; 'In the Fog' (which interviewed cinematographer Wally Pfister); Nathan Crowley: production designer; and 'Eyes Wide Open' (which interviewed sleep disturbance experts), which thankfully I viewed before I watched the movie, to enhance my experience.
Greatly recommended to fans of contemporary crime thrillers, regardless of whether you watched the Norwegian original or not. There are enough differences to still make it worth your while as a cinephile.

Captures some human sentiment incredibly well, coupled with the unique setting and great acting, this makes Insomnia a good watch, worth every minute of its two hour runtime.
That said, I was not as enamoured by it as others might be. Perhaps if was unaware of what Nolan, Pacino or Williams are capable of at their highest levels, or if I didn't realise five minutes before the end that I'd actually seen it as a kid and could exclusively remember the ending, then it would have had a higher impact on me.
But even taken for me as is, _Insomnia_ is still a very solid bit of filmmaking.
_Final rating:★★★ - I personally recommend you give it a go._