Madeleine Stowe was 19 in The Nativity when she played the character 'Mary'.
That was over 45 years ago in 1978.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 65, and has starred in 32 movies in total, 31 of those since The Nativity was released.
In The Nativity, I think Madeleine Stowe looks: