This is a small animation i did as a personal project. It is now released under a CreativeCommons license 3.0.
Here you can download all the files used, including the Blend file, textures and soundtrack.
The project contains 7 scenes but only 5 are used for rendering the final output, the other 2 extra scenes are the fluid simulation scenes which have been rendered as a PNG sequence and then fed into the compositor.

Scenes and elements :
1- Main scene :
- Trees
- Earth
- Camera and camera path
- Leaves and its particle emitter
- Wind forcefield affecting the leaves
- Airplane and airplane path
- *This scene also contains the final composite
Notes :
- To see the leaves you have to press the Bake button particles tab in the particle emitter.
- The sky pass is disabled so it renders the background as transparent alpha
2- Birds scene :
- Birds and its particle emitter
- Earth
- Camera and camera path
- Force field affecting the birds preventing them from crashing with the earth
Notes :
- To see the birds you have to press the Bake button in the particles tab from the particle emitter
- The sky pass is disabled so it renders the background as transparent alpha
3- Paper overlay scene :
- contains a plane with a paper texture to be used as an overlay in the composite
4- Sky scene :
- Camera and camera path
- Sky with stars
5- Text animation scene :
- Text
- Camera
- Empty controlling the text texture offset
Notes :
- The sky pass is disables so it renders the background as transparent alpha
Scenes 6 and 7 contain a fluid object and a domain each scene, you have to press the Bake button on the correspondent domain of each scene to see the actual fluid simulation.
Hope you enjoy ! Let me know if you do something cool with it ;-)