Answer:
The Paramount Case
Step-by-step explanation:
The Paramount Case was also called the "Hollywood Antitrust Case of 1948." This was a case (lawsuit) filed by the government towards 7 studios namely Paramount, Universal, Columbia, Twentieth Century Fox, Warner Brothers, MGM and RKO for violating the Sherman Antitrust Act. This act was made in 1980 in order to prevent monopoly in businesses. It regulated competition regarding businesses.
The 7 studios violated the Sherman Antitrust Act by controlling the theaters in the so-called "block booking." This is a term used when studios sells multiple films to a theater in one unit. The owner of the theater will sign an agreement with the studio that they will show all of the studio's films in a block or a given set/number. That's is the reason why it was called "block" booking. This trend was ended when the case was settled.