Steven Spielberg remains, improbably, one of the most energetic and fascinating directors still working, even at the age of 71. He might be slumming it with "Ready Player One," but what slumming it is. And don't miss the section with "The Shining." We also have two reboots this week, fittingly, both from the '80s. First is 1985's "Real Genius," with Val Kilmer as the head of a group of geniuses. Then a look at Jim Henson's "Labyrinth," from 1986. David Bowie and Muppets.