With more board configurations than there are atoms in the observable universe, the ancient Chinese game of'Go' has long been considered a grand challenge for artificial intelligence. On March 9, 2016, the worlds of Go and artificial intelligence collided in South Korea for an extraordinary best-of-five-game competition, coined the Google DeepMind Challenge Match. Hundreds of millions of people around the world watched as a legendary Go master took on an unproven AI challenger for the first time in history. Directed by Greg Kohs with an original score by Academy Award nominee, Hauschka, AlphaGo chronicles a journey from the halls of Cambridge, through the backstreets of Bordeaux, past the coding terminals of DeepMind in London, and, ultimately, to the seven-day tournament in Seoul. As the drama unfolds, more questions emerge: What can artificial intelligence reveal about a 3000-year-old game? What can it teach us about humanity?

Like the recent horror favorites "The Babadook" and "Hereditary," director Lee Cronin's "The Hole in the Ground" exploits the common terrors of parenthood. Though it's not quite in the same league as those movies, this is an impressive feature debut for a filmmaker with more in mind than just monsters and jump-scares. Co-written by Cronin and Stephen Shields, "The Hole in the Ground" stars Seána Kerslake as Sarah O'Neill, mother to Chris (James Quinn Markey), a precocious boy who peppers his mom with questions about why they left his father, and why they're moving to a small Irish town in the middle of nowhere. Not long after the O'Neills arrive, Chris' nagging evolves into flagrant misbehavior. After a local eccentric warns Sarah that her son is "not him," she suspects he's been replaced by a changeling -- perhaps sprung from the enormous sinkhole on their property.

A trio of reissues, all 4K restorations, highlight the Labor Day weekend film offerings: Steven Spielberg's 1977 mashed-potato-stacking sci-fi classic "Close Encounters of the Third Kind," with Richard Dreyfuss; Merchant-Ivory's 1983 India-set drama "Heat and Dust," starring Julie Christie; and Jacques Becker's 1960 crime drama "Le Trou." Other limited releases include French domestic drama "After Love" and the Czech-Slovak drama "The Teacher." After Love A couple chooses to separate after 15 years of marriage, but the husband remains in the apartment with his wife and daughters due to tight finances, leading to rising tensions. California Typewriter Documentary on a Berkeley repair shop, it's challenge to remain open and some of the collectors and enthusiasts who share a passion for the aging machines. Close Encounters of the Third Kind Steven Spielberg's 1977 science fiction classic stars Richard Dreyfuss as a man on a mission after a brush with a UFO.

The dance documentary "Step" and "Hell or High Water" writer Taylor Sheridan's directorial effort "Wind River," starring Jeremy Renner, highlight limited releases. Armed Response A special-forces team investigates mysterious disappearances at an A.I.-powered top secret military compound. The Battleship Island Near the end of World War II, a Korean independence activist plots to save his countrymen imprisoned by the Japanese as slave labor on the island of Hashima. Written by Ryoo Seung-wan, Shin Kyoung-ill. Brave New Jersey Orson Welles' 1938 "War of the Worlds" radio broadcast shakes up the denizens of a New Jersey town as they unite to battle the "alien" invaders.