From Netflix:

Jon Martello’s romantic exploits are legendary among his friends, but his obsession with online porn saps his enthusiasm for real sex. As he searches for intimacy — or avoids it — Jon meets two women with vital lessons to teach him.

Despite the constant shots of computer pornography, despite the endless stream of vulgar sexual discussions, despite all the swearing, there is a real point to this film. In fact this is the kind of film you could show teenagers in a sex class. Such a film will indeed titillate, but Joseph Gordon-Levitt does an amazing job in portraying a young “dude” that actually turns his life around as he moves away from one-sided sexual satisfaction and toward a real relationship. Repeat: his acting is superb.

He changes with the help of two women: Scarlett Johansson plays a low-class, gum chewing, sexy but domineering woman who starts Don Jon on the road to something better. Julianne Moore picks up where Johansson leaves off and finally makes the difference for Don Jon. This is not a spoiler because the whole point of the film is the process Gordon-Levitt makes with his addiction.

Notice Don Jon’s sister who seems attached at the hip to her smartphone. At one point she is dead on the mark.

As a Catholic I would like to remark that the scenes in the Catholic confession are not far off the mark as far as the impersonal atmosphere is concerned. However, in Catholic theology the confession is bogus and there is no forgiveness if the person confessing is not resolved to avoid the sin in the future. Future avoidance would be the last thing on Don Jon’s mind.

If you can ignore the vulgarity, this is actually a good film.