Janet McTeer was 24 in Half Moon Street when she played the character 'Van Arkady's Secretary'.
That was over 38 years ago in 1986.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 62, and has starred in 47 movies in total, 46 of those since Half Moon Street was released.
In Half Moon Street, I think Janet McTeer looks: