Real age of Eric Roberts in The Glass Cage
In the movie The Glass Cage, Eric Roberts was:
39 years old
That was the real age of the celebrity according to our calculation.
The calculation of the shown age took into account the first day of the year in which the movie The Glass Cage was released:
January 1, 1996
And the day in which Eric Roberts was born:April 18, 1956
Since movies usually don't take more than one year to be released since the beginning of the filming process, Eric Roberts may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.