Plan :
The paper will be structured as follows: A brief and general overview the Hollywood industry in a historical perspective will be followed by a focus on the Major studios that dominate the sector by analysing carefully the Hollywood industry as a stable oligopoly. An attempt will be made to identify the portfolio effect of the Major studios giving them a certain advantage over the rest of the market. Finally, this essay will discuss the weekly figures and their impact on the market structure and the competitive process.