However, David's ambitions of returning to his homeland to become a famous talk show host were postponed due to the sudden changes in the social and political climate of his country after the Iranian Revolution.

[2] Among his other entrepreneurial endeavors is his partnership in SOGOLI, Inc[3]., a company which designs and manufactures high end custom jewelry in the United States and exports to various countries.

Diaan's experience in the entertainment industry began when he started "Liquid Productions" in Los Angeles, California together with other talents such as now well-known comedian Maz Jobrani.

Despite the risks attached to this journey, Diaan returned to his homeland after 24 years in the summer of 2000, to direct and produce the touching and informative documentary Iran is My Home.

[5] Diaan's production company, Sublime Entertainment, has produced independent feature films such as Otis E. starring Kevin Durand and Peter Storemare, America So Beautiful and The Dogwalker.

Diaan's dramatic performance alongside Academy Award nominee, Shohreh Aghdashloo in The Stoning of Soraya M.,[6] earned him high praise and excellent reviews.