Slicker, jumpier 'Blair Witch' casts a mostly derivative spell

It would seem that there has never been a better time to dust off the cinematic relics of 15 to 20 years ago, given this year’s sudden deluge of long-deferred sequels: “Independence Day: Resurgence,” “Zoolander 2,” “My Big Fat Greek Wedding 2,” “Crouching Tiger, Hidden Dragon: Sword of Destiny.”...