Complex sentence: He attended the University of Brasília Communication course in the 70's but due the turmoil and repressive apparatus during Brazil's military dictatorship period, he moved to London where he studied photography and film at the Polytechnic of Central London and the British Film Institute.
Split into simpler sentences: He attended the University of Brasília but dropped the Communication course due the turmoil and repressive apparatus during Brazil's military dictatorship period. He moved to London, where he studied photography and film at the Polytechnic of Central London and the British Film Institute.