Yeah, in the dictionary next to the entry for "Unnecessary Sequel/Prequel" there's a picture from Hannibal Rising.
The book and the movie feel like fanfiction. The movie isn't badly made, and even has an ace performance by Rhys Ifans (not as Lecter, unfortunately), but it just has no reason to exist. The book is a faintly amusing novelization of Harris' script, and reads as such.
I have never worked out to my satisfaction why someone with the talent to write Red Dragon and Silence didn't go on to write different stories instead of hitching himself to the Lecter wagon. Yeah, I know: $$$. Still there was a genius at work in those first two Lecter books. As I've said here, Hannibal had its own pleasures but was an entirely different kind of book. Harris wrote two great thrillers, a pretty good misunderstood-monster romance, and fanfiction. He didn't write Black Sunday by himself (two other guys worked with him on the plot, Harris did the novel and split the money with his co-plotters). So really all he's ever done on his own is Lecter stories. Maybe that ended up being all that interested him. Hannibal Rising sure felt like a cash grab, though (or, to speculate generously, Harris' necessary response to "Tom, we're gonna make Hannibal Rising with or without you. You want in or not?").