Jay Chou (Initial D, Michel Gondry's Green Hornet) is one of the most famous pop stars in Asia. The Rooftop, marking Cho's second film as director, following Secret (2007), is a romance combining elements of martial arts and special effects in a musical extravaganza. It stars Chou alongside Eric Tsang, Wand Xueqi and Alan Ko in a story set in a fantasy world comprised of two distinctly contrasting communities and lifestyles. One group lives on rooftops, where they dance and sing every day, passing their days without a care in the world, while below them are the people living under the rooftops, who possess more money and power.