LOS ANGELES — "Ice Age: The Meltdown" heated up the box office with a mammoth $70.5 million weekend, while audiences gave the cold shoulder to Sharon Stone, whose "Basic Instinct 2" debuted with a paltry $3.2 million.

The "Ice Age" sequel took over the top box office spot from "Inside Man," which slipped to No. 2 in its second week. Premiering in third place was the Warner Bros. roller-skating tale "ATL," starring rapper Tip Harris, which took in $12.5 million.

1. "Ice Age: The Meltdown," $70.5 million.

2. "Inside Man," $15.7 million.

3. "ATL," $12.5 million.

4. "Failure to Launch," $6.6 million.

5. "V for Vendetta," $6.5 million.

6. "Stay Alive," $4.58 million.

7. "She's the Man," $4.57 million.

8. "Slither," $3.7 million.

9. "The Shaggy Dog," $3.5 million.

10 (tie). "Basic Instinct 2," $3.2 million.

10 (tie). "Larry the Cable Guy: Health Inspector," $3.2 million.