Ответ:
The cinema isn't one of the oldest kinds of art. The first film was shown on the screens only in the end of 19th century. It was soundless slideshow shown in the little room.
In my opinion cinema is one of the hardest arts because the cinema assignment is to show a story most real and interesting. Actors must play they role as they are a real character of story.
There are as many genres of films as books because often the plot of movies is based on book story. Horror, adventure, science fantastic, fantasy and more. Everyone can find movie to watch.
(по поводу любимого фильма дело личное)