AS A sci-fi fan, you learn not to dwell on the films that could have been. Whether it's Alejandro Jodorowsky's unmade Dune, Guillermo del Toro's cancelled take on At the Mountains of Madness, or the versions of Return of the Jedi that Davids Lynch and Cronenberg could have made, it's best not to torture yourself over cinematic what-ifs. That's why I had given up hope of there being a new instalment of the most underrated sci-fi film franchise of the 21st century so far. Though well received by critics and audiences alike, none of the four films have won Oscars or seem to have made much of an impact on pop culture. But then, earlier this month, we got confirmation that a fifth movie was on the way.

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Serkis explains visual effects studio, Weta, has 17 years' worth of data on his face which allows them to match what he does to the computer generated characters.

Justin Chang reviews "War for the Planet of the Apes," directed by Matt Reeves and starring Andy Serkis, Woody Harrelson, Steve Zahn and Judy Greer. Justin Chang reviews "War for the Planet of the Apes," directed by Matt Reeves and starring Andy Serkis, Woody Harrelson, Steve Zahn and Judy Greer. Justin Chang reviews "War for the Planet of the Apes," directed by Matt Reeves and starring Andy Serkis, Woody Harrelson, Steve Zahn and Judy Greer. Justin Chang reviews "War for the Planet of the Apes," directed by Matt Reeves and starring Andy Serkis, Woody Harrelson, Steve Zahn and Judy Greer.

Two of the technology industry's most powerful leaders are at odds when it comes to artificial intelligence. Tesla Motors CEO Elon Musk has a pessimistic view of the risks associated with such technology. "I keep sounding the alarm bell," Musk told the National Governors Assn. in June. "But until people see robots going down the street killing people, they don't know how to react because it seems so ethereal." Facebook Chief Mark Zuckerberg on Sunday called Musk's dire warnings overblown and described himself as "optimistic."