Twins ~Movie 1988
starring Arnold Schwarzenegger and Danny DeVito)

Identical twin Emily pointing to her twin Jorja on a recent hospital checkup. Jorja this year is the Children's Health Foundation face for their donation campaign...Emily was last years.

Twins can either be monozygotic ("identical"), meaning that they develop from one zygote that splits and forms two embryos, or dizygotic ("fraternal") meaning that they develop from two eggs, each fertilized by separate sperm cells.