影视院线板块盘初下跌，幸福蓝海跌超7.5%

Group 1 - The film industry sector experienced a decline at the beginning of trading on November 19, with significant drops in stock prices [1] - Happiness Blue Sea saw a drop of over 7.5%, indicating a notable downturn in investor sentiment [1] - Other companies in the sector, including Huanrui Century, Jiechuan Co., Huace Film & TV, and Huayi Brothers, also experienced declines in their stock prices [1]