Blow Up, Memento, One Hour Photo, Road to Perdition, Secrets and Lies, Blade Runner et al. are key films that highlight the use of photography in the main plot. Bladerunner uses photographs to imprint memories in its replicants to make them “seem” human, where Memento documents memories of the protagonist, so that he can function. Dozens of films weave still photography into the structure of the story.