Hollywood was previously broken up through antitrust decrees

Evidence

Antitrust measures have been used to tame Hollywood before, including the Paramount Decrees in 1948 that broke up the Hollywood studio system and the Financial Interest and Syndication Rules in 1970 that prevented monopolization by the Big 3 television networks. — Andrew deWaard, Derivative Media, 461

Categorization

• XREF: Paramount Decrees and Fin-Syn are direct precedents for the reader’s question about how ownership structure shapes industry form.