Fresh from her Academy Award-nominated turn as Lady Sarah in The Favourite, Rachel Weisz is now setting her sights on an iconic piece of American history. As announced by See-Saw Films, Weisz will be playing famous (and infamous) movie star Elizabeth Taylor in an upcoming biopic called A Special Relationship. The film promises to focus in on one aspect of Taylor's life -- one you likely haven't seen depicted before. We tend to frame Taylor as a symbol of Hollywood excess. She was married eight times, twice to the same person. She had an extensive collection of …