Police said Yuan Mou, a technician at Fujian Kewei Optical Co., was hired to carry out maintenance on the Southern Advertising Co. sign on the roof of the Kaixuan building in Beijing, near the Jilin Railway Station ticket office, the South China Morning Post reported Tuesday.
Yuan told police Friday he did not realize the advertising screen was still connected to its computer when he watched the erotic film "Xin Jin Ping Mei" Wednesday. Police said Yuan switched the screen off when an assembled crowd alerted the Southern Advertising Co. the film was being broadcast outdoors for all to see.
Police said Yuan had been living in the Kaixuan building while carrying out the maintenance.
The Morning Post said the movie is based on a Ming dynasty novel known as "The Plum in the Golden Vase" in English and has been adapted into several films. The version shown Wednesday is believed to have been a 2008 Hong Kong version known in English as "The Forbidden Legend: Sex and Chopsticks."
Authorities said the incident was still being investigated.