2001 a space odyssey is like that. Visually beautiful, even today, but almost no dialogue, and absolutely nothing is explained to the viewer.
One of the most interesting parts of the book was the reasons behind the AI, HAL, going off the rails, essentially he was an AI programmed to be honest and upfront, who was forced to lie, and was by far the most interesting character in the book.
None of this made it into the movie.