SLJH Musical Theatre Production of Mary Poppins Jr. - The Musical General Admission Tickets are: $5.00 for students and children (17 & under) $7.00 for Adults (18+). Doors open at 7:00pm. Show time 7:30pm. All tickets must be purchased online. All proceeds of this event will be funding Shoreline Junior High's Theatre program for future productions! One ticket will get you a seat to see Mary Poppins JR. A musical creatively worked on by junior high students. Directed by Mackinzie Flinders, Music Directed by Kiersten Allen. Enjoy the show!