"inside the red brick wall (理大圍城)" was approved by hong kong censor - derek lee in 2021. up to april 2022, he is still in office. "inside the red brick wall" is under "category iii". in november 2021, the hong kong law on censorship was changed. it is not clear whether "revolution of our times (時代革命)" (by kiwi chow) is allowed or banned. chow's movie's name is the later half of the tong's slogan (liberate hong kong; revolution of our times) without former half, without the words of "liberate hong kong".