Alejandro Jodorowsky Prullansky, the famous Chilean-French film director, poet, playwright and music composer, once said: "I have always thought that, of all the arts, the cinema is the most complete art."
I agree.
In ways more than one, cinema actually is an amalgamation of all other important art forms: painting, writing and music. It can be no coincidence that cinema is also the most modern of art forms. After all, evolution of other art forms was necessary for cinema to come into existence. The fact that it remains the most popular art form almost from the moment it came into existence tells you both its strength and its weakness: it is easily accessible and therefore, more commercializable.