I never said it didn't make sense; I said it was highly unlikely. (I think you misunderstood the "not making sense" part of my last post, but it doesn't matter.)
Actually, now that I think about it, I
do think that reading doesn't make sense! The only thing that Calvin tells Hobbes about the movie is that it has a "Japanese cast"; he doesn't specify which particular movie it is. How could Hobbes know what "people say" about that particular movie if he doesn't even know which movie it is?! All he knows is that it's a Japanese movie, so he makes a statement about foreign movies in general.
Another important point is that in American English, we rarely use the word "film" to mean "movie."
If only this principle had been applied more thoroughly by omitting "that," we wouldn't be engaged in this debate.