Farrah Fawcett was 28 in Logan's Run when she played the character 'Holly'.
That was over 48 years ago in 1976.
In 2009 she died aged 62, starring in 44 films in her career, 36 of those after Logan's Run was first released. If she were alive today she would be 77.
In Logan's Run, I think Farrah Fawcett looks: