Downtown Diane on the red carpet!

John Waters took his shoe off to show Diane it was a Marc Jacobs original

Elijah Kelley

James Marsden

Zac Efron

Downtown Diane interviews Zac Efron, also famous for High School Musical

Downtown Diane and Zac Efron

Maria Dennis and Regan from MIX 106.5 with Amanda Bynes

Nikki Blonsky, "Tracy Turnblad", the lead of Hairspray

Downtown Diane interviews Nikki Blonsky before the Premiere