From Neither the Power Nor the Glory: Why Hollywood leaves originality to the indies, on Slate:
Back in the old days of the studio system, the brand of a Hollywood studio meant something to the moviegoing public. Each studio, with its roster of stars under contract, came to be identified with a particular genre of movies: MGM (musicals and romantic comedies); Paramount (historical epics); Warner Bros. (gangster stories); 20th Century Fox (social dramas); Universal (horror movies); Disney (cartoons).