Melinda Sue Gordon / Netflix Look who's going to The Prom with Jo Ellen Pellman: Meryl Streep, Nicole Kidman, Kerry Washington, Keegan-Michael Key and late-night talk host James Corden. Jo Ellen Pellman attended Walnut Hills High School and the University of Michigan. Credit Ambe J. The 2014 Walnut Hills High School graduate plays Emma, an Indiana high school senior who was banned from taking her girlfriend to the prom, in the Netflix version of the Tony Award-nominated Broadway musical. The Prom will be released today. Streep, Kidman, Corden and Andrew Rannells play self-obsessed Broadway stars who try to repair their careers by invading a tiny conservative Indiana town to support Emma.