The exact reason for the postponement was unclear.
The exhibition includes the photos of overseas Chinese taken with five-star red flags worldwide, historical images of overseas Chinese and essays written by them about their own stories with the motherland.
The film stars Leonardo DiCaprio, Brad Pitt and Margot Robbie and is set in 1969 Hollywood during the Manson family murders.
The festival, which is celebrated on the ninth day of the ninth lunar month, celebrates the elderly and offers an opportunity to show respect for their contributions.
The federation urged residents to draw a clear line with rioters and denounce the violence.
The fillings comprise 70 percent crab meat and roe and 30 percent pork, with the sliced ginger and vinegar dip adding the final touch.
织金精神病医院
The film was released across China on Friday. Unfortunately, its screen share abruptly fell from 17.2 percent on opening day to 4.7 percent as of Monday, due to its powerful rival, Better Days, a coming-of-age hit about school violence.
The extra chromosome results in impaired mental capacity, delayed growth, flat facial features and lower immunity to a number of illnesses. The mental ability of an adult with Down syndrome is equal to that of a child age 8 or 9.
The event will be broadcast live by the China National Radio, China Central Television, China Radio International and several official websites.
The event, which coincides with London Fashion Week, offers trade and investment opportunities to British companies.