How old was Diana Ross in Thank God It's Friday?

Have you ever watched a movie and found yourself curious about a celebrity’s age at the time? That knowledge can reshape how we view their performance. In this article, we reveal the age behind the role.

In Thank God It's Friday, Diana Ross took on the role at the age of:

33 years old

Our analysis shows that this was the celebrity’s true age during filming.

The calculation of the shown age took into account the first day of the year in which the movie Thank God It's Friday was released:

January 1, 1978

And the birth date of Diana Ross:

March 26, 1944

Movies tend to be released within a year of filming, so Diana Ross may have been one year off from the listed age in certain scenes.