The latest Disney Channel original movie, Good Luck Charlie: It’s Christmas, an offshoot of the network’s hit sitcom, premiered with 6.9 million total viewers last night. It dethroned Lifetime’s The Craiglist Killer as the most-watched live-action cable movie of 2011. Good Luck Charlie also delivered 3.3 million kids 6-11, 2.4 million tweens and 1.4 million adults 18-49. The movie provided a strong launching pad for Disney Channel’s new music-centered sitcom Austin & Ally, which opened well with 5.7 million total viewers, 2.7 million kids 6-11 and 2.1 million tweens. The series moves to its regular time slot Sunday.