In the December 12 release, based on the 1951 classic, Keanu Reeves portrays Klaatu, an alien whose arrival on our planet triggers a global upheaval. As governments and scientists race to unravel the mystery behind the visitor’s appearance, a woman (Jennifer Connelly) and her young stepson (Jaden Smith) get caught up in his mission – and come to understand the ramifications of his being a self-described “friend to the Earth.”