This huge monopolization of the film business is what keeps afloat all the major and expensive blockbusters in modern Hollywood, without this vertical and horizontal integration the blockbuster experience would surely be different, to put it in simpler terms;
Disney > Marvel > Marvel Comics > $$$ > Marvel Film > $$$ > Marvel Film Merchandise > $$$ > Marvel TV > Dramas (Mostly in partnership with Netflix) > $$$ > Cartoons > Cartoons Merchandise > $$$ $$$ = Profiting revenue streams |