I personally wouldn't count Silence of the Lambs. Hannibal Lecter has been adapted in so many different movies, often out order from the books and its never really clear if the movies are supposed to have anything to do with each other or just be stand-alone stories.
Yeah, there had technically been a "Red Dragon" movie before SOTL, the one with Gil Grissom from CSI, but it wasn't anywhere near as good as the one with Ed Norton and Ralph Fiennes.