Amy Poehler Then
Amy Poehler was already well established as a three-year veteran of “Saturday Night Live” by the time “Mean Girls” came out, and was just becoming a comedy star at the time. (Of course, she was already a goddess among comedy nerds for co-founding the Upright Citizens Brigade Theatre in New York, which has fed new talent into every comedy movie and TV show you’ve seen for the last 15 years.) Her role as Regina George’s “cool mom” in “Mean Girls” is even more memorable than the Plastics themselves.