Richard Corliss is a very good writer. Here are some excerpts from what he said about Katharine Hepburn:

"Film stars typically possess a glamorous version of the common touch; they are of earth. Hebburn was apart and above ...."

"Her emotional intelligence was too prickly. She blew hot and cold in the same breadth-her fire had Freon in it."

On a similar vein somewhere I have read a sentiment that

"Her sulk brightens the room"

I couldn't remember where and who said that.