Lionel Shriver’s brilliant and shocking Orange Prize-winning novel We Need To Talk About Kevin has been adapted for the big screen. The film stars Tilda Swinton and John C Reilly as the couple whose son Kevin murders students and teachers at his high school. The Guardian has a sneak peek at the trailer. The book is outstanding but I’m unsure how appealing a film with quite so many unattractive characters will be for cinema audiences.