Shares of Nvidia, the chipmaker at the center of the global artificial intelligence boom, are tumbling before the opening bell with the tenure of CEO Jensen Huang threatened by revelations of an affair with a woman reported to be a suspected Chinese spy

From the moment he swans in with takeout from Peter Luger and dances a few impromptu steps with Scarlett Johansson, Adam Driver looks and moves differently in James Gray’s “Paper Tiger.”