“The Twilight Saga: New Moon,’’ Summit Entertainment’s “Twilight’’ sequel, remained No. 1 over what proved a record box-office Thanksgiving weekend for Hollywood. “New Moon’’ raised its domestic total to $230.7 million after just 10 days. “The Blind Side’’ had a great second weekend with $40.1 million, coming in at No. 2. Disney’s family comedy “Old Dogs’’ came in at No. 4 with $16.8 million; the Warner Bros. action tale “Ninja Assassin’’ opened at No. 6 with $13.1 million; “Fantastic Mr. Fox’’ expanded to nationwide release and pulled in $7 million to finish at No. 9; and in limited release, “The Road’’ opened strongly with a $1.5 million weekend.