It appears spoilers are actually illegal in Japan. I'm not sure how I feel about this.
Or can't you discuss movies?
So a bad critique of the movie, might also reduce people's desire to pay to see the movie. So with this kind of reasoning any information you give others about a movie (or other copyrightable work) could be problematic. Pretty strange stuff...
I did some searching and I got no result from news orgs I recognized. But like, it seemed correct.
Then again, if I remember correctly Nintendo tried to go after videos of people playing their games at some point. I guess it makes sense from that perspective.