Complex sentence: Second-phase Cinema Novo addressed the "anguish" and "perplexity" that Brazilians felt after Goulart was ousted, since under new President Pascoal Ranieri Mazzilli, Brazil transformed from a democracy into a military-run autocracy.
Split into simpler sentences: Second-phase Cinema Novo addressed the "anguish" and "perplexity" that Brazilians felt after Goulart was ousted. Under new President Pascoal Ranieri Mazzilli, Brazil transformed from a democracy into a military-run autocracy.