In the continuing saga of the Corleone crime family, a young Vito Corleone grows up in Sicily and in 1910s New York. In the 1950s, Michael Corleone attempts to expand the family business into Las Vegas, Hollywood and Cuba.

In the midst of trying to legitimize his business dealings in 1979 New York and Italy, aging mafia don, Michael Corleone seeks forgiveness for his sins while taking a young protege under his wing.

John Cazale was in only five films – The Godfather, The Conversation, The Godfather: Part II, Dog Day Afternoon and The Deer Hunter – each was nominated for Best Picture. Yet today most people don’t even know his name. I KNEW IT WAS YOU is a fresh tour through movies that defined a generation.