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http://thejudygarlandexperience.blogspot.com
/2010/08/new-book-on-mgms-back-lot-coming-soon.html

Studio System’s created movies in the form of vertical integration, meaning they had control over production, distribution and exhibition. Additionally, they had stars who worked under contract for one particular studio, and quickly became associated with their respective employer. The studios began to rely on their biggest stars to promote their films.

Because studios “owned” certain actors they would create films in particular genres. Stars became the best representation of what a studio did. Each studio had a ‘house style’ that combined their preferred genre with their contracted stars, and audiences began to expect movies to be a certain way depending on the studio it was created in.

Each studio had it’s own distinctive style and reputation. MGM Studios’ were known for their “Technicolor musicals”. They created movies like The Wizard of Oz and used their biggest celebrities, like Judy Garland, to sell their movies. The audience began to not only like musicals and MGM but they also grew fond of Judy Garland. The studios would then continue to cast her in similar roles with consistent character traits which encouraged people to continue to see MGM’s movies. This was the cycle followed by all the big studios in Classic Hollywood. Even though it did sell movies, it created an oligopoly within in the industry and regulation started to occur

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