A pulse-pounding thriller set in the nocturnal underbelly of contemporary Los Angeles. Jake Gyllenhaal stars as Lou Bloom, a driven young man desperate for work who discovers the high-speed world of L.A. crime reporting. Finding a group of freelance camera crews who film crashes, fires, murder and other mayhem, Lou muscles into the cut-throat, dangerous realm of nightcrawling — where each police siren wail equals a possible windfall and victims are converted into dollars. Aided by TV news producer Nina (Rene Russo), a veteran of the blood-sport that is local TV news, Lou blurs the line between observer and participant to become the star of his own story. Extras: “If It Bleeds, It Leads: Making Nightcrawler,” commentary with writer-director Dan Gilroy, producer Tony Gilroy and editor John Gilroy. Vitals: Director: Dan Gilroy. Stars: Jake Gyllenhaal, Bill Paxton, Rene Russo, Ann Cusack, Kevin Rahm, Kathleen York, Riz Ahmed, Viviana Chavez, Anne McDaniels. 2014, CC, MPAA rating: R, 117 min., Drama, Box office gross: $30.379 million, Universal.