On May 20, 2009, Friends of the Barnes Foundation appeared before the Commissioners of the Delaware River Port Authority (DRPA) in Camden, New Jersey, to request that they reconsider their 2003 authorization of a grant of $500,000 toward the plan to move the foundation. They contended there was insufficient evidence of substantial economic benefit to Philadelphia, and that DRPA had not undertaken necessary economic evaluation assessing the impact at both locations. They introduced a study by economist Matityahu Marcus that challenged the claimed benefits. The DRPA said that it would consider the Friends' request but did not change its decision. The history is chronicled in the HBO documentary The Collector.