In Lee Daniels's new film The Butler, a chronicle of African-Americans in service at the White House, there is a brief re-creation of Pablo Casals's 1961 concert for the Kennedys. Three musicians are seen playing Mendelssohn's D-Minor Trio; the man portraying Casals looks more like Rudolf Serkin than the Catalan master, but I had the impression he's a real cellist. (I missed his name in the credits, if it was there.) Afterward, one of the butlers comments admiringly on Casals's refusal to perform in any country that recognizes Franco's regime.