Typically, big productions like Avatar or Pirates of the Caribbean's" use tools like Vue in very complex, composite shots along with many other tools.

In the image above, they could well be using Vue for the cloud layer alone... or for individual flying rocks, and have the vegetation handled by something else.

When someone says Vue was used in a movie, it rarely means that Vue was used for 100% of the shot.

• agiel - www.linfa.net