Complex sentence: Sergio García Michel (Mexico City, Mexico 1945- "Ibidem" 2010) was an influential Mexican film director and professor, considered one of the key figures of Super 8 cinema and part of the counterculture movements of "La Onda" and "Rupestre".
Split into simpler sentences: Sergio García Michel (Mexico City, Mexico 1945- "Ibidem" 2010) was an influential Mexican film director and professor. He is considered one of the key figures of Super 8 cinema and part of the counterculture movements of "La Onda" and "Rupestre".