Looking to jump on the coattails of The March of Penguins, comes another, ice-bound, nature film, although the location is the frozen North, rather than the South. This features some beautiful footage of Arctic wildlife - a polar bear family playing, caribou herds migrating, and some memorable underwater shots of diving guillemots (they are the ones that dive bomb from the sky into the sea and then use their wings to propel them into the watery depths).

However, this straightforward documentary - Bjorkish soundtrack aside - really lacks the narrative focus of March of the Penguins. It doesn't focus on any particular creature or group of creatures, like Winged Migration, for example, so you don't really experience the same depth and intimacy.

More importantly, since the main thread is the Arctic wilderness itself, the filmmakers should have been more clear about just how much climate change is effecting this ecosystem to raise it above your average, dumbed-down piece of nature fluff.