Have you seen the shenanigans that go on with these CCP propaganda films and their over-inflated box office numbers? It's like their covid numbers, or their GDP numbers, it's all about face and trying to prove the superiority of China.
As for foreign films not getting China releases, the China box office is less valuable because the theatres only remit 25% of the gross box office takings to the studio. This is about half of what studios make from North american theatres. And foreign films also have their numbers gamed downwards. The practice of theatres selling tickets for local films in place of foreign films and simply replacing the name on the ticket in pen is very common: the customer gets to watch the foreign film but the box office take is attributed to whatever local film the CCP wants to push.
Yes, I remember the stories about theaters telling customers to ignore the local film name printed on their tickets to get into a foreign film.