I hope Izzy Stevens dies a horrible, miserable, painful death.

Katherine Heigl has hit another stumbling block on her way to movie stardom. Sources say the actress, whose just-concluded season on ABC's "Grey's Anatomy" might have been her last, was dropped from a top-tier ensemble cast in the upcoming romantic comedy "Valentine's Day" because she demanded an astronomical salary.

The flick, which is scheduled to be released in February 2011, is directed by Garry Marshall and has signed such big names as Julia Roberts, Jennifer Garner, Anne Hathaway, Ashton Kutcher, Shirley MacLaine and Bradley Cooper.

An insider told Page Six, "Producers at New Line originally had Katherine on their casting list. They wanted her for the project, but during the talks, she came back demanding $3 million for the role."

Our source calls that number "ridiculous" because the movie has "an ensemble cast where there is really no one lead role. Actors are only filming between three and 14 days, and no other actors asked for nearly that amount."

Wait...what? Kathrine Whogal asked for three million dollars when Shirley Mclain, Julia Roberts, and Anne Hathaway are members of the cast? Psst...Katherine...they're at least Oscar nominees if not winners. The only thing you've accomplished in your short tenure of Hollywood stardom is being a royal pain-in-the-ass. Everyone hates you. No seriously. They do. It's documented everywhere. You suck. You're so easy to hate. When you're Tom Cruise, you can be a prick, but when all you've done is My Father the Hero, Under Seige 2 (I've said this before) and a dying cast member of an ensemble cast on a beautifully written, estrogen exploiting show, you don't have many bargaining chips at your table. When the season finale of Grey's was on, I was begging the TV to please kill Izzy. If that miserable character...aka person is back next season, I'll funnel three gallons of Drano and kick myself in the nuts. In fact, I'd rather watch Heidi Montag perform Hamlet's soliloquy than be forced to watch Izzy Stevens draw one more breath. Please Shonda Rhimes...kill her.