The intimate bond between two identical twins is challenged when one decides to transition from male to female; this is the story of their evolving relationship, and the resurrection of their family from a darker past.

New York, 1980. Three complete strangers accidentally discover that they're identical triplets, separated at birth. The 19-year-olds' joyous reunion catapults them to international fame, but also unlocks an extraordinary and disturbing secret that goes beyond their own lives – and could transform our understanding of human nature forever.

Two sets of identical twins switched at birth in Colombia explore their complex history and new identities in this captivating documentary.

Documentary by Jean-Pierre Gorin about twin girls who spontaneously developed their own unique language as children.

A documentary about twin sisters whose beliefs have taken them on different paths. Filmmaker Zohra begins filming her twin sister Sanaa in their apartment in Brussels. When Sanaa silently turns to Islam, the religion the two sisters partially grew up with, Zohra becomes more and more consumed by capturing her sister. The inevitable transformation leads to a need to understand each other anew.

Anna Van der Wee lost her twin brother in a tragic accident at age 20. She takes us on a journey to four continents and revisits key relationships to understand how the death of her brother affected her life and loves.

An astounding exposé that gives voice to the unwitting subjects of an infamous American scientific experiment: the 1960s Neubauer-Bernard study of separated twins. Told from the perspective of the Jewish identical twins and triplets who were secretly split up in infancy and adopted through Louise Wise Services, a Jewish adoption agency, the documentary examines the traumatic, long-term effects of the separations — and continuing deception — on the children and their adoptive families.

In 2009 a bizarre story spreads around the globe, reported as fact in the world’s newspapers: Josef Mengele – the infamous escaped Nazi concentration camp doctor, the Angel of Death, may have succeeded in his lifelong goal of creating a blonde, blue-eyed master race. An historian says he has evidence that Mengele’s bizarre experiments on twins may not have ended at Auschwitz, that his efforts to engineer an Aryan master race continued and succeeded while on the run in South America.

Gustav and Oskar are twins. Oskar has Achondroplasia, a common form of dwarfism. Both have blue eyes and blonde hair.

Andrea and Krisztina Marics are 28-year-old identical twins with a teaching degree that have lived together since birth. They work together at a touring circus, doing joint artistic performances. After a long circus tour abroad, Andrea leaves the close relationship and ends their work together. She feels that she can succeed on her own. Krisztina still lives and works in the circus but struggles to find her place there without Andrea. After the winter tour, Krisztina has to decide if she stays at home with her sister or continues the life of a wanderer.

Identical twins are fascinating beings. They are born with the same genetic makeup and develop amazing similarities - and remarkable differences - over the course of their lives. The impressive documentation presents extraordinary pairs of twins and the latest findings from twin research.

In February 2022, in Kharkiv, twin sisters Maryna and Vladyslava Alexiiva had to flee in the middle of the night under the bombs. In extremis, they take with them their bronze medals, won in Tokyo a year earlier in synchronized swimming. They took refuge in Italy for six months, then decided to return to Ukraine to reunite with their team. From then on, they were obsessed with a single goal: to win the gold medal in Paris in 2024.

Advanced technology, groundbreaking scientific discoveries about the beginnings of life, and computer animation all combine to detail how multiple siblings develop in the womb as the filmmakers at National Geographic explore the fetal growth of twins, triplets, and quadruplets. Detailed pictures of these different groupings in various stages of fetal development bring the earliest stages of life to the screen as never before.

A documentary on the band Tegan and Sara's recording of the album The Con

A performance artist works tirelessly to fulfill her dream of adopting Sudanese twins, placing her marriage and career at risk in this documentary.

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As a 10-year-old “Mengele Twin,” Eva Kor suffered some of the worst of the Holocaust. At 50, she launched the biggest manhunt in history. Now in her 80s, she circles the globe to promote the lesson her journey has taught: Healing through forgiveness.

Filmmaker Stephen Hosier takes a journey with Richard Csanyi, his childhood friend, as he investigates the life and death of his twin brother Attila, who was found dead on a rooftop in 2020.

In this documentary, Alex trusts his twin, Marcus, to tell him about his past after he loses his memory. But Marcus is hiding a dark family secret.

Ibeji: Identical from Within is an Ayankola Ayanwuyi 14-minute documentary that tell the cultural and spiritual significance of Ibeji (twins) within the Yoruba landscape. This film look into the unique traditions, beliefs, and stories that celebrate the extraordinary bond of twinhood among the Yoruba people.