First Date's Zachary Levi and Krysta Rodriguez, and Wicked's Derek Klena are among the performers taking part in Ryan Scott Oliver's 35mm, which kicks off RSO FEST, a series of concerts showcasing three new musicals by award-winning composer-lyricist Oliver at 54 Below. RSO FEST launches Oct. 7 with 35mm: A Musical Exhibition, a multimedia musical based on the photographs of Matthew Murphy. Playbill caught up with Levi, Rodriguez and Klena in rehearsal for the event, for a preview of the music, and to speak to the singers, Oliver and director D.B. Bonds about what audiences can expect from the concert.