The three stories were shot using three different media, which fit in with the period described in the film. The first segment of the picture has a strong graininess and obvious noise, which is quite documentary. The second part uses 35mm film with the strongest color texture. The third part uses digital images, the picture is sharp and clear.
In the film, the scenes are extremely limited like a stage play. However, through creative composition, atmospheric lighting and occasional rear projection special effects, the film has successfully endowed the film with a rich and varied feeling. The soundtrack of the movie is also very attentive. The composer Daniel Pemberton first used futuristic electronic music, which gradually evolved as the film progressed, until the final scene became a symphonic orchestra accompanied by a melodious flute.
