“Tropic Thunder” topped the box office charts for a third straight weekend, earning approximately $14.6 million to close the summer movie season, according to The Hollywood Reporter.
“Babylon A.D.” claimed second place, taking in approximately $11.5 million over the weekend, and “The Dark Knight” finished a close third with approximately 11.1 million. 
Below are last weekend’s box-office totals from Nielsen EDI, as of Monday, September 1, 2008.

RANK
FILM
STUDIO
WEEKEND
GROSS

1
Tropic Thunder
DREAMWORKS / PARAMOUNT
$14,602,121
$86.9

2
Babylon A.D.
TWENTIETH CENTURY FOX
$11,541,571
$11.5

3
The Dark Knight
WARNER BROS.
$11,127,290
$504.8

4
The House Bunny
SONY PICTURES
$10,177,701
$29.7

5
Traitor
OVERTURE FILMS
$10,006,327
$11.5

6
Death Race
UNIVERSAL
$7,889,755
$24.7

7
Disaster Movie
LIONSGATE
$6,945,535
$6.9

8
Mamma Mia!
UNIVERSAL
$5,421,815
$132.5

9
Pineapple Express
SONY PICTURES
$4,448,782
$80.8

10
Star Wars: The Clone Wars
WARNER BROS.
$3,764,410
$30.7

Source: The Hollywood Reporter / …

The comedy “Tropic Thunder” took in an estimated $25.8 million over the weekend, knocking “The Dark Knight” down to second place after four weekends of top box office results, according to The Hollywood Reporter. 
“Dark Knight” took in an estimated $16.4 million over the weekend to raise the film’s overall gross to $471.1 million, surpassing the original “Star Wars” ($461 million) to secure second place in all-time box office rankings – behind “Titanic”.
Below are last weekend’s box-office totals from Nielsen EDI as of Sunday, August 17th. 

RANK
FILM
STUDIO
WEEKEND
 GROSS

1
Tropic Thunder
DREAMWORKS / PARAMOUNT
$25,812,796
$36.8

2
The Dark Knight
WARNER BROS.
$16,379,293
$471.1

3
Star Wars: The Clone Wars
WARNER …