Over the past two years, reports have surfaced about three films in the works, all at various stages of development and funding.

CNN: The enduring fascination of the Sharon Tate murder

Here are three destinations in various parts of the world that are in different stages of development, but are seeking to answer the same question: Can we make eco-tourism into one of the most important industries in our country?

FORBES: Can Eco-Tourism Help Underdeveloped Countries?