Actually, Hollywood manufactures a product: exposed film in a can. (Along with video tapes, DVDs, etc.) There is quite a bit of labor involved with the manufacture of this exposed film. It is value-added and creates wealth. It's not a service.
Interestingly, if not for the transformation of the exposed film, the acting, directing, etc. would be a service. And as is typical of service jobs, the performance would have to be repeated over and over and over and over again, for low pay, for anybody to make any kind of living.
I guess there aren't very many service jobs that don't add value.
Exposed film in a can is even more useless than unexposed film in a can unless their is artistic merit in the exposure. Artistic merit is a service and not a tangible good. I can expose film in a can by taking unexposed film and opening the can. Hollywood is mostly a service industry.