The Monuments Men: George Clooney and Matt Damon
11 February 2014 Last updated at 17:03 GMT
George Clooney and Matt Damon joined the cast for the news conference of their new film The Monuments Men.
Clooney wrote, directed and starred in the World War Two comedy which is inspired by the true story of a team of soldiers on a mission to rescue valuable artwork stolen by the Nazis.
The little-known group of heroes managed to recover about five million works snatched across the whole of Europe.
Clooney and Damon spoke to reporters about the film and about being quoted from previous news conferences.