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.

My Mom Jayne
2025
8.0/10

Misha and the Wolves
2021
6.8/10

Time Lapse
2014
6.5/10

Z.P.G.
1972
6.2/10

The Secret
2006
6.5/10

The Class of ‘92
2013
7.1/10

Hitchcock/Truffaut
2015
7.3/10

Fast Color
2019
6.0/10

Greenland 2: Migration
2026
6.4/10

Hideaways
2011
6.2/10

The Walking Dead: The Return
2024
7.3/10

Showrunners: The Art of Running a TV Show
2014
6.4/10

Deception
2008
6.0/10

Obi-Wan Kenobi: A Jedi's Return
2022
6.8/10

Deliver Us from Evil
2006
7.1/10

Don't Die: The Man Who Wants to Live Forever
2025
6.2/10

Stories We Tell
2012
7.1/10

Supersonic
2016
7.4/10

Ronaldo
2015
7.0/10

Being James Bond
2021
7.8/10

Der lange Weg ans Licht
2008
3.5/10