In a copyright free world, movie theaters would of course be free to copy the movies too. Benefits would accrue to landowners, basically, rather than producers of movies.
Change it how? All I ever hear are handwavy proposals about "other ways" of doing things. How could you get a significant return on an investment in producing a film? Even non-flashy films cost a lot of money to make.
Or would films become the exclusive province of wealthy sponsors with money to squander?