That mystique was a marketing ploy.

Sir Christopher first suggested the idea of this exhibit in 2000. We began working together on it in 2002 and worked on the project for three years, searching for material and oral histories from Leone's collaborators in Italy.

A lot of fans are curious about the origins of the poncho. In the original script, he'd taken the poncho from a man taking a bath by the side of a river. But that scene was never shot. So we have the script explaining it all - in Italian.

We made a decision to only bring in material that had maintained its original look since used in his films. And we were lucky to find so much.

People who had worked with Leone kept mementos of his films — props and costumes — and they would pull them out of cupboards and closets and offer them to us for the exhibit. Making these movies was very important to them, even 40 years later.

Post kept bound books with typed lists of gifts sent and received ... jeweler Harry Winston sent her a box of cheese