Talk about mobility ... entire cities are movable in this fantasy-drama that counts Peter Jackson (“The Lord of the Rings”) among its producers and screenwriters. Adapted from a novel by Philip Reeve, the tale unfolds in the aftermath of an apocalypse as a teenager and a wouldbe killer (Robert Sheehan, Hira Hilmar) are forced to work together to prevent an incredibly powerful weapon from wiping out the cities-on-the-go. Given its creation of what effectively is a different universe, there’s a lot to digest here, but such visuals as a city in the sky keep the film involving. Hugo Weaving, Stephen Lang, Patrick Malahide and Colin Salmon also appear.
★★★ (PG-13: AS, P) (Also on Blu-ray and On Demand)