The Lanthanide Series is an experimental video essay produced by Cornell alumna Erin Espelie, and its subject is the series of rare-earth metals used throughout history in the production and replication of images: first in the obsidian “black mirrors” of early societies, now in your iPhone screen. The film has no plot, characters or dialogue. Instead, it consists mostly of shots of industry, the natural world and spliced-in clips from outside sources, with a narrator reading in monotone over the top. Interposed are references to historical figures, like Gutenberg and Primo Levi, who had some hand in the process of image creation. Exactly what point Espelie is using all these techniques and subjects to make is a little unclear.