Mila Kunis, Kristen Bell, and Kathryn Hahn provide commentary on the 'Bad Moms' trailer.Mila Kunis, Kristen Bell, and Kathryn Hahn provide commentary on the 'Bad Moms' trailer.Mila Kunis, Kristen Bell, and Kathryn Hahn provide commentary on the 'Bad Moms' trailer.