Aaron Eckhart and Nicole Kidman Irritated Each Other on 'Rabbit Hole' Set

Aaron Eckhart and Nicole Kidman "irritated" each other on the tense set of their new film "Rabbit Hole" as they struggled to deal with the movie's disturbing subject matter. The actors play the grieving parents of a dead child in the harrowing film and Eckhart recently revealed he prepared for the role by taking part in a group counseling session with real life victims of family tragedies.