The best thing about this extreme biking film is not the extreme biking, although a lot of that is definitely jaw-dropping. It’s the cinematography, which is rich and skillfully done. And it’s the location (an uninhabited island in the Arctic), which is as sere and stark and otherworldly as a moonscape. And it’s the useful geology lessons and climate science that are layered into the narrative. These elements, combined, help push North of Nightfall toward a stratum of filmmaking that’s well above its adrenaline base.