Complex sentence: A graduate of the prestigious Polish Film School in Lodz, Goldberg was a personality in the post-war Polish film community, and worked as a collaborator and assistant director for Polish film directors such as Andrzej Munk, Jerzy Kawalerowicz, and Roman Polanski.
Split into simpler sentences: A graduate of the prestigious Polish Film School in Lodz, Goldberg was a well-known personality in the post-war Polish film community. He worked as a collaborator and assistant director for Polish film directors such as Andrzej Munk, Jerzy Kawalerowicz, and Roman Polanski.