Last Watched

Why Do We Dream

   2009    Medicine
Horizon uncovers the secret world of our dreams. In a series of cutting-edge experiments and personal stories, we go in search of the science behind this most enduring mystery and ask: where do dreams come from? Do they have meaning? And ultimately, why do we dream? What the film reveals is that much of what we thought we knew no longer stands true. Dreams are not simply wild imaginings but play a significant part in all our lives as they have an impact on our memories, the ability to learn, and our mental health. Most surprisingly, we find nightmares, too, are beneficial and may even explain the survival of our species.

Why Do We Lie

   2015    Culture
We all agree lying is shameful. Yet we still deliberately deceive each other constantly. Are our brains wired for lying from a young age? The brains of pathological liars may provide insights. Will technology make it easier for us to be dishonest, or could it someday instantly reveal someone is lying? Perhaps we are deceitful because our limited senses prevent us from seeing the real truth. Scientists say our own memories deceive us, and have managed to implant false memories. Other scientists look for ultimate truth in the subatomic world … only to end up turning reality on its head.
Series: Through the Wormhole Season 6

Why Does Evil Exist

   2016    Culture
In the fifth episode of the series, Morgan Freeman sets to examine the nature of evil, visiting a serial killer in prison and witnessing an exorcism in India. He also explores ancient beliefs, including Zoroastrianism.
Series: The Story of God

Why Islamic State expands so quickly

   2015    Culture
The self-proclaimed 'Islamic State' is a jihadi militia active in the north and east of Syria, and in the west of Iraq, which has shocked the world with its cinematic staging of horrific acts of violence and its unexpected advances towards statehood. But why could IS expand so rapidly?

Why We Ride

       Culture
An inspiring celebration of the motorcycling community, this documentary film shares the passion of motorcycle riding and shows the camaraderie of the friends and families who ride together. As told by the many racers, riders, pioneers, and parents in the sport, the story weaves its way through generations of motorcyclists who live each day to the fullest on their two-wheeled machines. The refreshing message about the joys of motorcycling, coupled with state of the art photography, capture the imagination and set the soul in motion.

Wild Cities

   2020    Nature
Each night, across the planet, our cities illuminate the darkness. Their lights burning brighter than ever before. And whilst we're asleep, animals are making the most of this new neon landscape. The sunset in Los Angeles, Chicago, and Toronto creates worlds of opportunities for the cleverest animals willing to take the risk.
Series: Earth at Night in Color
Human Universe

Human Universe

2014  History
Mammals

Mammals

2024  Nature
The Keepers

The Keepers

2017  Culture
Ancient Apocalypse

Ancient Apocalypse

2024  History
The Hunt

The Hunt

2015  Nature
Worst Ex Ever

Worst Ex Ever

2024  Culture