One small problem in the movie
Overall, I was quite impressed with the movie. But there was one small problem I noticed. All the dialogue in the movie was too clear and too clean. I supposed the dialogue was recorded in the studio, in good quality, and that's why it sounds so clean. Almost no interfering background noises can be heard when people speak. The clean voices are a bit out of touch with the muddy visuals.
That's not a big problem, just something I noticed. Given that the movie is rather old, perhaps the sound recording techniques were not developed enough to create believable background noises. Or perhaps the director knowingly made it this way. Much of the movie is covered with the strange vocal soundtrack, there's not much space in the movie for any real world sounds (aside from people's talk).