@Lustig Andrei,
My understanding is Pattinson plays a sparkly vampire and Stewart plays a mopey human in a movie series called Twilight, much beloved by the teen girl demographic. They've been in a relationship off camera since the first movie came out. She was caught on camera having a fling with her middle aged, married director and a tabloid splashed all the pictures all over the Internet.
Will Ferrell (comedian and movie star) did a skit on Conan where he railed against her, calling her a "trampire" and trampire was the Internet word of the week. Fans of the movie and couple went into meltdown. She publicly apologized and begged him to take her back, but for a while it looked like he had some common sense.