Photo: Giles Keyte/Universal Pictures Jon M. Chu has made one of the great musicals of our time, a phantasmagorical coming-of-age journey into a land of wide-eyed enchantment, wild dance moves, and colorful, magic bubbles. That movie was called Step Up 3D , and it came out in 2010. Though dismissed by critics at the time, that dance-off sequel feels more like a masterpiece with each passing year, an early demonstration of its director’s ability to spin new worlds through movement and mood.