It's an anthology. It's three stories of 45 minutes, 40 minutes and 15 minutes that have nothing at all to do with one another. In fact, the film's title only refers to the first story. This film is one part science-fiction thriller, one part bioterrorism comedy (THERE'S a category I've never put a film in!) and one part single-shot (99% of it, anyway) borderline-documentary.
Disney couldn't make a film this engrossing if the fate of mankind depended on it.
Those who have what I call the "It's an Anime" stigma should shake it off for "Memories". Rent this. Buy this. See this!