Art Will Always Eat Itself

In an irrelevant aside:

One midday in the middle of summer in New York, 1972 John ‘Sonny’ Wojtowicz watched The Godfather. He wanted to become Michael Corleone. The part of Michael Corleone was played by Al Pacino. Wojtowicz robbed a bank later that day so his male lover Ernest Aaron could become a woman. The robbery failed. The botched robbery inspired a film script. The lead role was offered to a young stage actor who had recently made a name for himself in The Godfather. Ernest Aaron became Elizabeth Eden. In the Summer of 1975, filming began in New York of Dog Day Afternoon. Al Pacino became Sonny Wojtowicz.

Does this mean that if I watch The Sopranos this evening and decide I want to become Don Tony then in three years James Gandolfini will be a failed writer living in a small flat in Sydney?

No, it just means art will always eat itself.