Information for 13 Going on 30 at Opera House, Manchester (Musical). What does Jenna Rink want for her birthday? That's easy. At thirteen years old, she wants to skip her school years and to be thirty, flirty and thriving. As she blows out her birthday candles, she magically wakes up seventeen years later: a thirty-year-old fashion magazine editor with a life that seems to be perfect. As she unravels the mystery of the person she has grown up to be, Jenna must work out what, and who, really matters. 13 Going on 30 The Musical is a stage reimagining of the beloved 2004 hit romantic comedy film that starred Jennifer Garner and Mark Ruffalo.