March of the Penguins is an excellent documentary by Luc Jacquet. It helped raise environmental awareness (directly and indirectly) all around the world and won many awards. If you haven't seen it yet, we strongly recommend it.
The video above is an ad that ran in France for La Marche de l'empereur (the original title of March of the Penguins in French -- literally, The Emperor's March). It's only a minute long, fun and well-done (and it has English sub-titles). Check it out.