Some hotels will have it. According to relevant data, a small film screening room was specially designed in the "Night Park Qinhuai Series" hotel managed and operated by Nanjing Confucius Temple Cultural Tourism Group on both sides of the Qinhuai River in Nanjing. There is a small blackboard next to the film projector, and white chalk is painted with the announcement of the release of the old film that day. Hilton Zhongshan Nanlang Hotel also has a desk and a small blackboard, which is also convenient for customers to use for business trips and meetings. Not all hotels will have small blackboards, but some will.