The making-ofs are incredible and worth watching. For one piece of footage, the camera guy was in a bird hide for weeks on end, waiting. I can't imagine the bor

The making-ofs are incredible and worth watching. For one piece of footage, the camera guy was in a bird hide for weeks on end, waiting. I can't imagine the boredom! In another, they used a hot air balloon. And from a technical perspective, the bit where they're shooting sharks in super slow mo is interesting. All of those are on the Planet Earth 1 DVD box set - I'm sure there are digital options around.