I was shown "Nails" in a film class and was really enthralled and enjoyed the experience.
The film is a short about the manufacturing of Nails. Yet it has no narration. It just shows the machines working and the nails being produced, with the sounds of the factory in the background. Simple.
But it's the strength of the shots that makes the film worth watching. The composition is the strength.
If you are interested in film as a purely visual medium try and find this. Although I'd have no idea where you should go look.