Public Diplomacy Resource Centers Act of 2008 - Amends the State Department Basic Authorities Act of 1956 to direct the Under Secretary for Public Diplomacy to provide for the establishment of new, and maintenance of existing, libraries and resource centers at or in connection with U.S. diplomatic or consular missions.
Directs the Secretary of State to: (1) ensure that such libraries and resource centers are open to the general public to the greatest extent practicable, subject to security considerations; and (2) schedule public showings of American films that showcase American culture, society, values, and history.
Directs the Advisory Commission on Public Diplomacy to report to the House Committee on Foreign Affairs and the Senate Committee on Foreign Relations respecting the functions and effectiveness of such libraries and resource centers.
Authorizes appropriations.