Real age of Macaulay Culkin in Uncle Buck
In the movie Uncle Buck, Macaulay Culkin was:
8 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 Uncle Buck was released:
January 1, 1989
And the day in which Macaulay Culkin was born:August 26, 1980
Since movies usually don't take more than one year to be released since the beginning of the filming process, Macaulay Culkin may have been one year younger or one year older than the shown age while some scenes of the movie were being filmed.