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.

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Ashes and Snow, a film by Gregory Colbert, uses both still and movie cameras to explore extraordinary interactions between humans and animals. The 60-minute feature is a poetic narrative rather than a documentary. It aims to lift the natural and artificial barriers between humans and other species, dissolving the distance that exists between them.

Most movie fans know that the first filmmakers liked to shoot trains entering stations. This example by Sussex film pioneer George Albert Smith illustrates why. The train's rush towards the audience brings movement and visual drama. The flurry of human activity offers plenty for the audience to engage with - who are these people and where are they going? And the time pressure exerted by the fact that the train must soon depart adds narrative tension - will everyone get on and off in time?

Filmed in IMAX, a young Mayan boy who lives close to the ruins becomes acquainted with an archaeologist (Guerra) and asks her to tell him about his ancestors. The crew travelled to over 15 locations in Mexico and Guatemala, including Tulum and Chichén Itzá.

Lost Worlds looks at untouched aspects of nature in parts of the world where humans rarely tread. From plants, to animals, to geology, this artfully photographed documentary presents facets of the biological world that you are not likely to see anywhere else.

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In this spectacular exploration you'll take a journey through the 4,000-year history of mankind's relationship with the Grand Canyon. Discover the earliest inhabitants of the Canyon whose lives are still shrouded in mystery. Travel with Spanish explorers as they become the first Europeans to uncover the Canyon's awesome beauty. Ride along in the re-enactment of US explorer John Wesley Powell's expedition down the raging Colorado River, when nine crew members risk their lives to become the first to travel the length of the Canyon by boat. Grand Canyon: The Hidden Secrets will take you into the rarely visited side canyons filled with hidden waterfalls and unusual wildlife. Experience the Canyon as never before: soaring over the rim and flying through some of the most inspiring scenery on Earth.

An educational short film about correct speaking methods.

Travel around the globe to some of the best zoos, which are striving to fill a new role that relates directly to environmental education.

This documentary film focuses on the animal life that survives in this harsh arctic climates at the edge of the ice - from the simple algae to narwhals, polar bears, sea birds, seals, whales and walruses.

Film historians, and survivors from the nearly 30-year struggle to bring sound to motion pictures take the audience from the early failed attempts by scientists and inventors, to the triumph of the talkies.