New releases Les Miserables and Django Unchained gave the Christmas box office in America a big boost on Tuesday (25Dec12) by scoring over $30 million (Gbp18.75 million) between them. Blockbuster movie musical Les Miserables opened with $18.2 million (Gbp11.3 million), while Quentin Tarantino's acclaimed new western wasn't far behind with a $15 million (Gbp9.4 million) opening day take.