People News 'Sherlock Holmes' tops weekend movie box office, 'Chipmunks' second 12/18/2011 "Sherlock Holmes: A Game of Shadows" with Robert Downey Jr. debuted at No. 1 at the box office this weekend with more than $40 million in gross U.S. receipts. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Charlize Theron Robert Downey Jr. Jonah Hill The Muppets Hugo Mission: Impossible -- Ghost Protocol New Year's Eve Sherlock Holmes Sherlock Holmes: A Game of Shadows The Muppets Young Adult
