Same-sex and opposite-sex teen couples kiss. Nothing graphic is shown in that scene, but another brief shot includes a quick glimpse of a Playgirl magazine that features photos of fully naked men. A teen girl has sex for the first time: She's shown sitting astride her partner, who finishes quickly. Teen characters smoke pot and drink in one scene, a teen drinks so much that she winds up in the hospital. It's a wonderful, funny, touching, and balanced movie, but only for older teens due to the mature content. Parents need to know that Lady Bird is the directorial debut of popular indie actress Greta Gerwig, who tells a semi-autobiographical story based on the time between when she finished high school and left for college ( Saoirse Ronan plays the character based on Gerwig).