Wiktionary
n. A story illustrated with photographs and text captions.
Wikipedia
A photonovel (sometimes spelled as fotonovel) or "Fumetti" is a type of book, adapting a film or television episode and using film stills instead of artwork along with the narrative text and word balloons containing dialogue. The photonovel concept was most popular in the late 1970s and early 1980s, before the widespread advent of home recording devices such as VCRs, though some are still published. Several popular films and television programs were adapted to the format.
The photo novel has also taken more comic form with online comics in the digital age, and the format has most recently been re-invented with a more cinematic influence in the original online works of Schaubert & Neuenschwander.
Usage examples of "photonovel".
The photographs are certainly much better than I remember from those old photonovels of my youth -- crisper, great angles, and the layouts are particularly intriguing -- but I have to admit that this still isn't a medium that I'd normally seek out.