It's been 20 years since those national monument-destroying space aliens got destroyed by an Apple laptop computer virus. Now it seems they're back--and rather embarrassed for having gone out like such punks. They've brought some even more humongous spaceships with them this time, capable of causing even more CGI destruction. It's up to a new generation of freedom fighters (Liam Hemsworth, Jessie T. Usher among them) as well as a few familiar faces (Bill Pullman, Brent Spiner, Vivica A. Fox) to kick alien ass once again. 120 minutes PG-13.