Cate Blanchett is one of those actresses that once you hear she's in a movie, you just assume it'll be an Oscar winner. Whatever magic juice she possesses, it creates Oscars. It could even be an Oscar for something obscure like sound design, but the film will still get it because of her. She's in both Marvel and The Lord of the Rings series, so even the nerds can appreciate her.
A funny role that Cate Blanchett has on her resume is 'Hot Fuzz.' That may surprise you because you don't actually see her face in the movie. She plays Simon Pegg's ex-girlfriend who is on the job as a crime scene cleanup worker. He has a full break up scene with her, all while you can't even see her expression. That kind of casting will always be funny to me.