How old was Johnny Galecki in The Opposite of Sex?

It's common to wonder how old a celebrity was when they starred in a particular film. Knowing that can offer insight into their career stage and personal growth. We’ve tracked down that detail for you.

During the filming of The Opposite of Sex, Johnny Galecki was:

22 years old

According to our data, that’s how old the celebrity really was during the film.

To determine the age, we considered the first day of the year The Opposite of Sex premiered:

January 1, 1998

And the birth date of Johnny Galecki:

April 30, 1975

Given that most films are released within a year of production, the actual age of Johnny Galecki during filming may have varied by one year from the shown age.