He survived primarily on kale salads and chewing gum while running 15 miles a day.

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At the heart of "Nightcrawler" lies the transformation of Lou Bloom, a young man from a troubled past who becomes obsessed with capturing violent and gruesome footage for a local news station. Gyllenhaal's performance masterfully conveys Lou's calculating ambition, as he methodically builds his own nightcrawling business, gradually distancing himself from his more conventional and morally grounded friends.

The climax of Nightcrawler —the mirrored stare-down and the line "I can never ask for anything again"—is a masterclass in tension. Watching a compressed, mono-audio, 720p version on a phone destroys the work. A copy viewed on a calibrated OLED screen with a soundbar or headphones transforms the film into a sensory assault.

Jake Gyllenhaal stars as Lou Bloom, a driven and ambitious young man who becomes obsessed with capturing violent and gruesome footage for a local news station in this critically acclaimed thriller. Directed by Dan Gilroy, "Nightcrawler" is a riveting and unsettling film that explores the darker side of human nature and the consequences of our actions.