A bridge collapses; closed-circuit cameras monitor every nook and cranny of a street; a downtown demonstration turns violent; a national treasure gets destroyed by arson.

It's not your average promotional movie about a city.

"Bitter, Sweet, Seoul," a crowd-sourced film about Seoul supported by the city government was released on Tuesday and there are no polished images or preaching about the virtues of South Korea's capital.

Instead, the film shows a raw Seoul, with plenty of rough edges. And that's exactly what the directors and the city's mayor were looking for.

"With this movie, we tried to show that real people own this city, lead their lives, have fun, and try hard," Park Chan-wook, who co-directed the film with his younger brother told a press conference.