first of all, Robert Elswit's cinematography is superb in the film (and im defintely not the only one to say this). its very apparent that the way its shot not only brings a personality of los angeles to life but also set up in a way that compliments the protagonist's personality as well. We are not only seeing the world through Lou's eyes, but also his mind. From still shots of the city, to the streets at night and the pov of a recording cam, the camera work brought this film to life. It's not just in Jake Gyllenhaal's acting that tells a story of immoral judgment and narcissistic needs, but we feel it as we watch the protagonist transgress deeper for his desire of getting what he wants.
From the very beginning, we see Lou stealing a watch from a security guard, as he is cutting fence wires to sell for scrap money. He may be clever with words, and seems like an optimistic guy, but we soon learn that something is very off. I'd like to compare this film with 'Taxi Driver' where we observe Travis's pov of social corruption and decides to act according to his own morals. 'Nightcrawler' is a case of a underdog living in a dog eat dog world where everyone is only looking after themselves, a study of a person willing to abandon moral values in order to succeed. Lou Bloom is an anti hero and we are only 'rooting' for him to see him falling further down the path. From sabotaging his competitors vehicle to letting criminals getting away to get to the scene of a homicide and finally having his partner shot by the criminal just for the footage. As far as we root for his success we are also shocked at his disregard for human life, and we see through his 'words of optimism' of what he truly is. In the end, as the news director standing face to face with Lou in front of the video of his dead partner saying "its just amazing, just amazing..." and Lou's 'congradulation' speech to his new employees, we can only hope and wonder, how far is he willing to go? how long would this 'success' last?
It's ironic, that his last words were "i would never ask you to do anything that I would not do myself." with a smiling pokerface, in front of his naive interns. certainly, at one point in or another in our lives, we have experienced such personality, and have learned what they are really after isn't in those words.