Indiana Jones: Making the Trilogy

This producer is the real force behind many films. I recognize some hidden codes in the trilogy of Indiana Jones maybe cos I check some scenes paying attention to Hebrew detailed inscriptions. Does anybody here know how to contact him, whether a private e-mail or where he works? It doesn't matter if he answers to me but I need to mention some things specially about the rumors of the plot in Indiana Jones in a unique letter, no need to send more than one. I managed myself to sent a letter to Spielberg but I need this other address. Anybody can help me? You see the themes he's picking are linked with a pattern and we know George Lucas knows about mysticism because he learned many things from Master Joseph Campbell. Even the names he uses like "Anakin" are taken from specific parts.