Natalie Portman and Ashton Kutcher in an Ivan Reitman comedy about the dangers of relationships forming out of casual sex? The surprise isn't that it came in number one, but rather that Reitman was able to bag his cast for a miniscule $25 million price tag.

No Strings Attached topped the list this weekend with $20 million, a nice haul for a movie made on such a low budget. That also makes it the first release of 2011 on target to turn a nice profit. Perhaps its a sign that Hollywood has noticed ticket sales slipping over the last two years and is forcing movies, and actors, to tighten their belts a bit.

The Weinstein's The King's Speech held on again this weekend, repeating the $9 million it banked last week bringing its total domestic sales to nearly $60 million. It's not only refreshing to see a good movie making good money, but also to see the Weinsteins churn out something worth while again. Their last two ventures, Piranha 3D and Halloween II (2009) left a lot to be desired.

For the full weekend top ten results, check out the chart below:

1. No Strings Attached * $20,300,000  -  Total: $20,300,000 LW: N     WR: 1     THTRS: 3,018

2. The Green Hornet $18,100,000  -  Total: $63,441,000 LW: 1     WR: 2     THTRS: 3,584

3. The Dilemma $9,727,000  -  Total: $33,364,000 LW: 2     WR: 2     THTRS: 2,943

4. The King's Speech $9,164,000  -  Total: $58,622,000 LW: 4     WR: 9     THTRS: 1,680

5. True Grit $8,000,000  -  Total: $138,633,000 LW: 3     WR: 5     THTRS: 3,464

6. Black Swan $6,200,000  -  Total: $83,581,000 LW: 5     WR: 8     THTRS: 2,407

7. The Fighter $4,515,000  -  Total: $73,031,000 LW: 9     WR: 7     THTRS: 2,275

8. Little Fockers $4,394,000  -  Total: $141,186,000 LW: 6     WR: 5     THTRS: 2,979

9. Yogi Bear $4,060,000  -  Total: $88,890,000 LW: 8     WR: 6     THTRS: 2,510

10. Tron Legacy $3,708,000  -  Total: $163,268,000 LW: 7     WR: 6     THTRS: 2,018