The Strange Case of Crop Circles

Channel 4 Equinox documentary about the mystery of crop circles, broadcast shortly before Dave Chorley and Doug Bower revealed themselves to have started the craze.

AREA 51: I Was There

Step inside one of the most notorious places on the planet in Area 51: I Was There. Made famous by The X Files and generations of conspiracy theorists, only a select few have been to Area 51, and even fewer have spoken of what lies inside. But now you can venture beyond the perimeter fence to discover some of its incredible secrets in our ground-breaking special, Area 51: I Was There. Area 51 was established by the CIA in 1955 to develop classified military projects. Since then the base has gained worldwide notoriety. Satellite images of the area show seven runways and over 25 hangars, and many claim it is here that the US government carries out experiments on everything from UFOs to aliens themselves. Indeed, many insist that the true purpose of the site is to reverse-engineer alien spacecraft recovered from the infamous Roswell crash site. Yet, officially, Area 51 doesn't even exist...

Back on Board: Greg Louganis

Feature-length documentary about the greatest diver of all time. Four-time Olympic champion Greg Louganis has faced more than his share of challenges. In 2011, he is far from the public eye and struggling to pay his mortgage. Now, the openly gay, HIV+ world-class athlete returns to diving to mentor the USA Olympic hopefuls. This may be his best chance to regain the notoriety -- and financial stability -- he enjoyed at the height of his career.

Deep Blue

Deep Blue is a major documentary feature film shot by the BBC Natural History Unit. An epic cinematic rollercoaster ride for all ages, Deep Blue uses amazing footage to tell us the story of our oceans and the life they support.

The Trouble With Agatha Christie

An investigation into the mysterious world of the crime novelist Agatha Christie, with comments from poison experts, policeman and pathologists and members of her family.

Paradise Lost: The Child Murders at Robin Hood Hills

A horrific triple child murder leads to an indictment and trial of three nonconformist boys based on questionable evidence.

Coral Reef Adventure

Coral Reef Adventure follows the real-life expedition of ocean explorers and underwater filmmakers Howard and Michele Hall. Using large-format cameras, the Halls guide us to the islands and sun-drenched waters of the South Pacific to document the health and beauty of coral reefs. Featuring songs written and recorded by Crosby, Stills & Nash.

Tom Daley: Illegal to Be Me

Tom Daley visits the most homophobic countries in the Commonwealth to explore how gay athletes are facing extreme persecution. What can the Commonwealth Games do to help?

Dolphins

From the banks of the Bahamas to the seas of Argentina, we go underwater to meet dolphins. Two scientists who study dolphin communication and behaviour lead us on encounters in the wild. Featuring the music of Sting. Nominated for an Academy Award®, Best Documentary, Short Subject, 2000.

Ocean Men, Extreme Dive

For more than 10 years, world champion freedivers Pipin Ferreras and Umberto Pelizzari have been vying for world records. Their love of the sea without compromise is what unites these two rivals. However, it is their different personalities and opposing diving philosophies that separate them. Pipin is the "No Limits" man who wants to go deeper and deeper. Umberto, the purist, seeks harmony in the ocean's depth. Ocean Men takes you into the world of these two awe-inspiring freedivers through the use of breathtaking underwater photography, enchanting music, and insightful animation.

The Mona Lisa Myth

Stonehenge Empire

For centuries, Stonehenge has been cloaked in mystery. Who built it? How did they do it? Why did they do it and what is its significance? Now, a team of archaeologists takes a high-tech approach to find out, and their discoveries will exceed all expectations. Learn the full story of the world's most investigated prehistoric site, featuring a forgotten people who were meticulous planners, profound believers and true warriors. It's a 10,000-year-old tale, pieced together by state-of-the-art survey equipment and compelling archaeological evidence.

Ghosts of the Abyss

With a team of the world's foremost historic and marine experts as well as friend Bill Paxton, James Cameron embarks on an unscripted adventure back to the wreck of the Titanic where nearly 1,500 souls lost their lives almost a century ago.

Edgar Allan Poe: Buried Alive

How the inventor of the detective story became his own greatest mystery.

The Empire Strikes Door

A thrilling comedic documentary attempting to uncover the mystery of who is responsible for one of the most infamous bloopers in cinematic history.

Dive: Approach And Exit

Before the assault, feel the weight of the body.

Deepsea Challenge 3D

Described as being a film about determination, danger and the ocean’s greatest depths, James Cameron's "Deepsea Challenge 3D" tells the story of Cameron’s journey to fulfill his boyhood dream of becoming an explorer. The movie offers a unique insight into Cameron's world as he makes that dream reality – and makes history – by becoming the first person to travel solo to the deepest point on the planet.

Led Zeppelin Played Here

1969. Man lands on the moon. Half a million strong at Woodstock....and Led Zeppelin perform in the gym of the Wheaton Youth Center in front of 50 confused teenagers. Or did they? Filmmaker Jeff Krulik chronicles an enduring Maryland legend, of the very night this concert was alleged to have taken place, January 20, 1969, during the first Presidential Inauguration of Richard Nixon. Led Zeppelin Played Here presents a mid-Atlantic version of what was happening nationwide as the rock concert industry took shape. Featuring interviews with rock writers, musicians, and fans, and several who claim they were witnessing history that night.

Breaking2

After six months of scientifically advanced training, three of the world's most elite distance runners set out to break the two-hour marathon barrier. These pioneers go on a global trek to defy the unthinkable and break the two-hour feat, from testing in wind tunnels and running labs in the United States, to balancing training with their day-to- day lives in eastern Africa, to the final heart-pounding race in Italy.

Those Who Wander

What are they? What do they seek? When all the lights go out, they will wander. And you will never see them.