Bill Mechanic is the man behind those tiny films you may have heard of like Titanic, Independence Day, and Fight Club.
One film Mechanic worked on was Star Wars: The Phantom Menace.
He also spoke about the experience of making Titanic.
And what it was like to work with James Cameron.
Mechanic had always been a comic book fan, and was a driving force behind Fox's X-Men.
He also revealed that initially, Wolverine wasn't going to be played by Hugh Jackman.
Now a producer for films like Hacksaw Ridge, Mechanic has some great life advice.