Fahrenheit 9/11 opened top on $21.8m at the weekend according to studioestimates, a stupendous result for the Palme d'Or winner as it became the firstdocumentary ever to debut at number one.

The result already appears to have passed the total theatricalgross of Michael Moore's previous work, the Oscar winning Bowling ForColumbine, which becamethe biggest grossing documentary outside of concert pictures and IMAX releaseson $21.6m.

Moore's R-rated anti-Bush polemic won rave reviews and averaged amighty $25,115 from 868 screens.

Opening in second place on $19.6m was Revolution Studios' comedy WhiteChicks, which starsShawn and Marlon Wayans as a pair of black undercover cops who disguisethemselves as white girls.

Keenen Ivory Wayans' comedy wasn't too badly slammed by critics,and averaged a powerful $7,190 from 2,726 screens.

Fox's Dodegball fell two places to third on $18.5m for a verypromising $67.2m in its second weekend, while Dreamworks' TheTerminal fell two to fourth on $13.9m for$41.8m after the same amount of time.

New Line's epic romance The Notebook opened fifth on just over $13m,averaging $5,655 from 2,303 screens.

Nick Cassavetes' picture received mixed write-ups; it stars RyanGosling and Rachel McAdams as star-crossed lovers whose story is relayed yearslater by an elderly couple, played by James Garner and Gena Rowlands.

Harry Potter And The Prisoner Of Azkaban passed $200m for Warner Bros in itsfourth weekend as it fell three to sixth on $11.4m for $211.7m, while Shrek2 will pass $400m forDreamworks any day now after adding $10.5m for $397.1m in its sixth weekend andslipping three to seventh.

Garfield passed$50 in its third weekend for 20th Century Fox but fell three to eighth on $7mfor $55.8m.

Despite excellent reviews, Universal's Two Brothers, Jean-Jacques Annaud's adventure taleabout tigers starring Guy Pearce, opened lower than expected on $6.2m. Itaveraged $2,850 from 2,175 screens.

Around The World In 80 Days, which was financed by Walden Media and distributed viaBuena Vista, fell two places to 11th in its second week, adding $4.3m for$18.3m.

Next weekend's only wide release is Sony's Spider-Man 2, the summer blockbuster-to-beat starring Tobey Maguire, Kirsten Dunst, James Franco and Alfred Molina.

Estimated Top Ten US Jun 25-27 2004

Film (Distributor)/International distribution/Estimated weekendgross/Estimated total to date

1 (-) Fahrenheit 9/11 (Lions Gate/IFC Films/Fellowship Adventure Group) Wild Bunch$21.8m $21.9m

2 (-) White Chicks (Sony/Revolution) CTFDI $19.6m $27.1m

3 (1) Dodgeball: A True Underdog Story (Fox) Fox Intl $18.5m $67.2m

4 (2) The Terminal (Dreamworks) UIP $13.9m $41.8m

5 (-) The Notebook (New Line) NLI $13m -

6 (3) Harry Potter And The Prisoner Of Azkaban (Warner Bros) Warner Bros Pictures Intl$11.4m $211.7m

7 (4) Shrek 2 (Dreamworks) UIP $10.5m $397.1m

8 (5) Garfield: The Movie (Fox) Fox Intl $7m $55.8m

9 (-) Two Brothers (Universal) Pathe/UIP $6.2m -

10 (7) TheStepford Wives(Paramount) Dreamworks/UIP $5.2m $49m