Why is Ashton Kutcher uncredited in father of the bride movie?

Ashton Kutcher is not uncredited in the movie "Father of the Bride." He does not appear in the movie at all.

The movie features Steve Martin as George Banks, the father of the bride, and Kimberly Williams-Paisley as his daughter, Annie Banks. The film is a remake of the 1950 original and includes a cast of popular actors like Diane Keaton and Martin Short.