January Jones was 20 in It's the Rage when she played the character 'Janice Taylor'.
That was over 25 years ago in 1999.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 46, and has starred in 22 movies in total, 19 of those since It's the Rage was released.
In It's the Rage, I think January Jones looks: