WASHINGTON - JUNE 27:  Actor Bruce Willis (L) signs an agreement with Director of the National Museum of American History Brent Glass (R) where Willis agreed to donate objects from the 'Die Hard' series of films to the Smithsonian's National Museum of American History June 27, 2007 in Washington, DC. A selection of 'Die Hard' items will go on display in the new acquisitions case in the museum's 'Treasures of American History' exhibition at the Smithsonian.  (Photo by Win McNamee/Getty Images)