Film Review

‘Underland’: What Ancient Tribes Really Used Deep Caves For

Most religions identify caves as sacred interfaces between natural and supernatural, using them for meditation, ritual, burial, and spiritual enlightenment.
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‘Underland’: What Ancient Tribes Really Used Deep Caves For
Archeologist Fatima Tec Pool after rappelling down giant tree  roots into a cave entrance in "Underland." Oscilloscope Laboratories
Mark Jackson
Mark Jackson
Film Critic
|Updated:

NR | 1h 19m | Documentary | 2026

Humanity forever tests the boundaries of its physical existence. We’ve been up to the moon, and Mars, and all the high mountain summits. We’ve been down to the oceanic depths of the Mariana Trench. We tirelessly telescope and microscope the macrocosm and microcosm—we’ve mapped and measured much.

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Mark Jackson
Mark Jackson
Film Critic
Mark Jackson is the senior film critic for The Epoch Times and a Rotten Tomatoes-approved critic. Mark earned a bachelor's degree in philosophy from Williams College, followed by classical theater conservatory training, and has 20 years' experience as a New York professional actor. He narrated The Epoch Times audiobook "How the Specter of Communism Is Ruling Our World," available on iTunes, Audible, and YouTube. Mark is featured in the book "How to Be a Film Critic in Five Easy Lessons" by Christopher K. Brooks. In addition to films, he enjoys Harley-Davidsons, rock-climbing, qigong, martial arts, and human rights activism.
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