Kristen Stewart's cheating scandal is a joke in Joan River's new book, "Diary of a Mad Diva," and the "Twilight" star is not happy about the Rupert Sanders joke. The "Twilight" is reportedly taking legal action against Rivers over a passage in her book about the actress' affair with "Snow White and the Huntsman" director Rupert Sanders, according to TMZ.

In "Diary of a Mad Diva," which is due out next month, Rivers wrote, "Many stars only do one thing well. Of course, the best one-trick-pony is Kristen Stewart, who got a whole career by being able to juggle a director's balls."

Rivers told a TMZ cameraman, "I am now being sued by Kristen Stewart. She obviously didn't read our disclaimer, which says it's a comedy book. I can't wait to get her into court because I'm gonna get a puppet and I want her to show me on the puppet where she thinks I claim she touched her director. I am looking forward to it."

Rivers added, "Her lawyer contacted my lawyer, which shows the sense of humor she has. My answer to her was, 'Be glad you're not a Kardashian because they're mentioned a lot more in the book' ... I'm a comedian. I've been doing it for 50 years. If people don't get it, then don't come and see me. It's okay. Don't read the book. If you're gonna take it seriously, you're a fool."

According to the Stir, Robert Pattinson was at a press stop in Los Angeles to promote his latest movie The Rover, where he mentioned the importance of friendships and what makes a good one.

Pattinson said, "I think loyalty is probably the most important trait in a friendship. It's definitely very important."

He added, "I was really lucky to have pretty great friends growing up ... I think I've had all my friends for at least 10 years. I have a very optimistic view of the world -- mainly because I like my life!"