Director and deepsea explorer James Cameron (R) speaks after a screening of his film "Deepsea Challenge 3D" August 4, 2014 at the American Museum of Natural History in New York with Neil deGrasse Tyson (L), astrophysicist and Frederick P. Rose Director of the Hayden Planetarium at the museum. The film documents Cameron's construction and piloting of the Deepsea Challenger craft to the bottom of the nearly 7 mile (11.3 kilometers) deep Mariana Trench in the Pacific Ocean on March 26, 2012. AFP PHOTO/Stan HONDA (Photo credit should read STAN HONDA/AFP via Getty Images)
