Unity, entertainment, and erotic movies in the cinema

Honestly, I have no idea about movies. As an amateur, I follow the Oscars, I find good films, but I can't remember them by titles, let alone by directors. I find it hard to follow debates about cinema, what has done one of the directors and how much his style has changed during the past decades. What about erotic movies? A total blank. And to see at least one, ...