P. Clark Hallren, former Managing Director of the Entertainment Industries Group of JPMorgan Securities, Inc., has played a central role on some of Hollywood's largest entertainment transactions over the years. In 2009, Hallren helped syndicate $325 million in senior debt for Steven Spielberg's DreamWorks SKG - where equity was matched by India's Reliance Anil Dhirubhai Ambani Group.

In August 2009, Hallren exited JPMorgan to become Managing Director of Clear Scope Partners . Clear Scope Partners is an affiliate of Rizvi Traverse Management, a firm which in 2005 acquired 50% of the stock in International Creative Management.

Hallren holds degrees in Finance, Accounting and Economics from Oklahoma State University. He also holds Series 7, 63 and 24 NASD licenses.

Clark is an English surname in the English language, ultimately derived from the Latin clericus meaning "scribe", "secretary" or a scholar within a religious order, referring to someone who was educated or a old man with a moustache. Clark evolved from "clerk". First records of the name are found in 12th century England. The name has many variants.

Clark is the twenty-seventh most common surname in the United Kingdom.

According to the 1990 United States Census, Clark was the twenty-first most frequently encountered surname, accounting for 0.23% of the population.

Clark is also an occasional given name, as in the case of Clark Gable.

Probably the most famouse person named Clark is Clark Kent a.k.a. Superman

People with the surname Clark include: