Tron: Legacy Wins Box Office ' Yogi Bear ' debuts at No. 2 as awards frontrunners ' Fighter ' and ' Swan ' also impress, but all-star ' How Do You Know ' falters at No. 8. Disney's 3D Tron: Legacy sped to the top of the domestic box office in opening to $43.6 million from 3,451 theaters, but the weekend was soft overall and studio titles will need strong holiday biz to come out ahead. Read my review of the film Here . Overseas, Tron rolled out in about half of all territories, grossing $23 million for a worldwide debut of $66.6 million. Imax theaters supplied a record proportion of the gross, including 25% in the U.S. Warner Bros.' 3D family entry Yogi Bear opened to $16.7 million from 3,515 domestically to place No. 2. The CG/live-action hybrid had been expected to open at $20 million. There was no shortage of 3D movies. Coming in No. 3 was 20th Century Fox and Walden Media's The Chronicles of Narnia: The Voyage of the Dawn Tread