Forget The Hollywood A-list. Check Out The Hollywood A-hole List

Katherine Heigl I Hate Balls
Ready for her close-up

Is Lindsay Lohan difficult to deal with on set? If her complete arrest record is any indication, that may be a possibility. But Katherine Heigl? Seriously? The statuesque star who always plays such a sympathetic character is actually a dressing-room diva? That is surprising. Find out who else makes the Hollywood A-Hole list in these important scientific findings compiled by US Weekly.