[7] Gerard Butler (300) and Morena Maccarin (Firefly) star in this end-times thriller about a family trying to find shelter before a comet smashes into Earth. We’ve seen this plot play out in movies like Armageddon and Deep Impact, but Greenland distinguishes itself by its psychological focus on the two main characters. There are, of course, visual effects depicting destruction and devastation, and harrowing crowd …