"One Day on Earth" -- touted as the first film with footage from every country taken on the same day -- was to be screened for the first time Sunday around the world, including at the UN.
Organizers say the documentary, to be shown at the United Nations General Assembly and in more than 160 countries, addresses issues such as cultural diversity, environmental waste, extreme poverty and the status of women.
The 105-minute film includes content from both novice and professional filmmakers, according to producers of The One Day on Earth Project.
The movie, generated from more than 3,000 hours of footage shot on October 10, 2010 (10/10/10), set out to create a sort of "time capsule" of life on earth, they said.
A staggering 19,000 filmmakers generated input from around the world, even from countries with limited access such as North Korea and Libya.
Among the project's supporting partners were the United Nations and dozens of nonprofit organizations such as the World Wildlife Fund and the Ford Foundation.
International Earth Day, now in its 42nd year, was celebrated by environmentalists Sunday seeking to raise awareness about climate change and pollution, and highlight ways to save energy.
Explore further: Renewable energy policies drive production of southern wood pellets for bioenergy