The film work in this movie is incredible. The best camera work is when you are invited to fly with these incredible birds on their journey across the world - the camera being positioned right at the birds flying formation and you feel like you are taking the journey yourself!
The film is a visual feast and you get to experience the bird's successful migrations and their unfortunate unsuccessful ones - being shot down, hunted by birds of prey, or getting injured. It also puts into perspective our own lives, as we busily migrate back and forth to work everyday, mostly oblivious to our surroundings, while above us and all around us life is thriving and surviving. These magnificent animals soar over our cities, as the film shows beautifully, and we are only little spots to them as they travel thousands of miles with only the flap of their wings. Humankind was once so impressed with these birds, and envious, that we wanted to be like them, so we invented planes. But we still could never match their elegance and magnificence.
The film however does get boring at times, which is usually the case with films that are majority visual and lack narration, taking away depth and educational aspects. The film is less a documentary and more an art film. But it is definitely worth a watch and will give you a different perspective on birds and yourself forever.