Naturally, his actual quote about backing out of a third Langdon movie is somewhat subtler and politer - something about wanting to move on to other artistic endeavors. I, however, choose to believe that this is rather a reflection of the fact that The Lost Symbol, unlike the other two Langdon books, is a totally uninteresting jumble of a non-story, with none of the intrigue of the European locations, and shot through with magic-is-science crapola besides. I'll be genuinely surprised if Hanks really goes on to do a movie of it after this.