Book excerpt: Actor Joseph Gordon-Levitt makes his feature directorial debut with this funny yet earnest psychological comedy-drama about a womanizer named Jon Martello (Gordon-Levitt) who earns the nickname "Don Jon" for his ability to charm beautiful women, but remains unable to forge a meaningful connection with the opposite sex due to his all-consuming Internet porn addiction. Meanwhile, as Jon struggles to free himself from the realm of virtual debauchery, he connects with two disparate women (Scarlett Johansson and Julianne Moore), who separately try to teach him the true value of intimacy. ~ Jason Buchanan, Rovi