Deadline says
Director Lynne Ramsay’s We Need to Talk About Kevin explores the relationship between a mother (Tilda Swinton) haunted by the murderous rampage of her psychopathic son (Ezra Miller). John C. Reilly plays the father. With cinematography by Seamus McGarvey, the movie based on a novel by Lionel Shriver screened in competition this year at Cannes and recently won best picture at the London Film Festival. It opens in limited release December 9.
John C Reilly is something of an enigma. You kinda see him pop up in a movie and he plays some sort of goof, then he comes out with a movie like this where you can't help but get the impression that he's turning in an amazing performance.
This looks like a really good movie.