Walking on a hair as sharp as a knife

Stars of "The Walking Dead," Andrew Lincoln and Danai Gurira, walk down memory lane and visit iconic locations where pivotal moments between their characters, Rick and Michonne, were filmed.

The Making of the TV Series The Walking Dead.

On August 7th 1974, French tightrope walker Philippe Petit stepped out on a high wire, illegally rigged between New York's World Trade Center twin towers, then the world's tallest buildings. After nearly an hour of performing on the wire, 1,350 feet above the sidewalks of Manhattan, he was arrested. This fun and spellbinding documentary chronicles Philippe Petit's "highest" achievement.

In December 2004, close-knit family Maria, Henry and their three sons begin their winter vacation in Thailand. But the day after Christmas, the idyllic holiday turns into an incomprehensible nightmare when a terrifying roar rises from the depths of the sea, followed by a wall of black water that devours everything in its path. Though Maria and her family face their darkest hour, unexpected displays of kindness and courage ameliorate their terror.

Using every known means of transportation, several savants from the Geographic Society undertake a journey through the Alps to the Sun which finishes under the sea.

dancing on the soft knife