Dark Angel was a show from FOX, created by James Cameron, starring Jessica Alba.
a genetically enhanced supersoldier designated as X5-452 (from the barcode tattooed on the back of their necks) escapes along with eleven others from a secret U.S. government institution where they were born, raised, and trained to be soldiers and assassins
Sound familiar?
Dark Angel release date - 10/03/00
Hitman: Codename 47 release date - 11/19/00
Alba was cast in the lead role when she was 17 (1997).
ioi wasn’t formed until late 1998.
IMDB Trivia:
Most of the footage from the opening credits is edited from footage from the TV show Dark Angel (also owned by 20th Century Fox), which shares a similar story line about genetically enhanced children trained as super assassins and soldiers.