Naomi watts movie where her son is killed by two men who break in?

The movie you're referring to is "Funny Games," directed by Michael Haneke. In this psychological thriller, Naomi Watts plays a mother whose family is taken hostage by two young men during a vacation at their remote lake house. The film explores themes of violence and the impact of media on society, making it a disturbing and thought-provoking experience. Watts' performance, alongside the film's unsettling narrative, has garnered significant attention and critical acclaim.