On his 89th birthday, David Attenborough talks to President Obama about his career, his recent record-breaking dive on the Great Barrier Reef and issues facing the natural world.

In May 2015, an extraordinary conversation took place in the White House as President Barack Obama interviewed Sir David Attenborough. Together, they candidly discuss the future of the planet, their passion for nature and what can be done to protect the environment. This intimate film includes behind-the-scenes footage of his latest project on the Great Barrier Reef, and some rarely seen moments from Attenborough's career.