To this date, this movie is the only one that Christopher Nolan directed but didn't write, somehow you can understand that watching the movie, because Christopher Nolan always direct movies that he wrote, or at least Co-Wrote like Batman Begins.
Let me explain what i meant by not a movie by Christopher Nolan, it a crime, thriller, and mystery, with AL Pacino and Robin Williams, to me this movie was a standard crime and mystery with nothing special, it doesn't mean that it was bad, but doesn't have that Christopher Nolan effect, the story follows AL Pacino as a detective who get sent to a small town in Alaska to investigate a murder of a teenage girl, along with his partner, so after he finds the identity of the murderer, he follow him into the woods, and then he accidentally shoots his own partner, then refuse to confess about the murder because he thought that people won't believe that it was an accident, Robin Williams sees the shooting and decide to make a deal with AL Pacino, because AL Pacino is the only one who knows that Robin Williams is the one who killed the teenage girl, and if he told the police about it, Robin would tell the police that AL Pacino shot his partner.
The movie was very well executed, and had that dark look but it was shallow, meaning, that it won't keep you guessing, it's not a full mystery, because you can sense things coming from a mile away and that's not very Christopher Nolanly.
If anything, i thought that robin Williams was very miscasted in this movie, the fact that he's a comedian in a serious role didn't bother me because he was masterful in good will hunting but i didn't feel him here, even AL Pacino didn't deliver a good role, he seemed very old and tired and 'let's get away with it' kinda thing.
If you notice my review, you'll see that i haven't mentioned Insomnia, and the reason is that the movie isn't about it at all, in fact, after the movie ended i thought that the title was misleading, i mean don't get me wrong, AL Pacino did have insomnia in this movie, he couldn't sleep the entire time, and he lived in a town that didn't have nights, just days, but the only way you see it effecting him when he goes to sleep in the hotel and try to cover the windows, and that is all, i didn't see how his sleep disorder had any effect on the movie.
So, overall, if you haven't watched it, it's no something special, just another, crime and murder movie but a very well done movie even though it had it flaws.
7/10