Sony Pictures' PG-13 rated martial arts actioner The Medallion premiered in fifth place with an ESTIMATED $8.2 million at 2,648 theaters, with a $3,097 per theater average.

The film, Jackie Chan's first theatrical release in three years without a famous co-star, revolves around a Hong Kong detective who must protect a Buddhist monk child and a mysterious medallion from a ruthless crime lord.

Directed by Gordon Chan, it stars Jackie Chan, Lee Evans and Claire Forlani.

Buena Vista Pictures' PG-13 rated fantasy pic Pirates of the Caribbean: The Curse of the Black Pearl remained strong in sixth place in its seventh week with an ESTIMATED $7.3 million (-20%) at 2,404 theaters (-306 theaters; $2,500 per theater). Its cume is approximately $261 million.

Directed by Gore Verbinski and produced by Jerry Bruckheimer, it stars Johnny Depp, Geoffrey Rush, Orlando Bloom and Keira Knightley.

Universal Pictures' PG-13 rated equestrian drama Seabiscuit gained a spot to finish in the No. 7 position in its fifth week with ESTIMATED $6.3 million (-22%) in 2,534 theaters (+72 theaters; $2,500 per theater). Its cume is approximately $93.1 million and headed for the $100 million mark.

Directed by Gary Ross, it stars Tobey Maguire, Jeff Bridges and Chris Cooper as three down-and-out men who find fame and fortune in an equally down-and-out racehorse.

MGM's PG-13 rated riches-to-rags tale Uptown Girls dropped three rungs to place eight in its second week with an ESTIMATED $5.6 million (-50%) in 2,495 theaters (unchanged; $2,244 per theater). Its cume is approximately $22.3 million.

Directed by Boaz Yakin, it stars Brittany Murphy, Dakota Fanning, Donald Faison, Marley Shelton and Heather Locklear.

Universal Picture's R rated teen comedy American Wedding fell two spots to finish ninth in fourth week with an ESTIMATED $5.7 million (-34%) at 2,467 theaters (-518 theaters; $2,260 per theater). Its cume is $90.6 million.

Directed by Jesse Dylan, it stars Jason Biggs, Seann William Scott, Alyson Hannigan, Eddie Kaye Thomas and Thomas Ian Nicholas.

Rounding out the Top Ten is Dimension Films' PG-13 rated fowl comedy My Boss's Daughter, which debuted in tenth place with an ESTIMATED $5 million in 2,201 theaters with a $2,272 per theater average.

In the film, a young executive housesits for his boss and tends to his prized pet owl in hopes of skipping a few rungs up the corporate ladder.

Directed by David Zucker, it stars Ashton Kutcher, Tara Reid, Molly Shannon and Andy Richter.

OTHER OPENINGS

Paramount Pictures R rated hip-hop comedy Marci X opened to a disappointing $875,000 in 1,200 theaters with a $721 per theater average.

In the film, a New York Jewish socialite is forced to take over a hard-core hip-hop label and deal with a controversial rapper whose record is gaining some negative publicity.

Directed by Paul Rudnick, it stars Lisa Kudrow, Damon Wayans, Richard Benjamin, Christine Baranski and Jane Krakowski.

Fox Searchlight's R rated teen drama Thirteen, meanwhile, opened in five theaters to an impressive $112,213 with a $22,443 per theater average.

The movie focuses on an innocent, pigtailed 13-year-old who enters junior high with a promising future ahead of her, until she falls in with the ultra-popular, hottest girl in school and is introduced to a world of sex, drugs and misdemeanors.

Directed by Catherine Hardwicke, it stars Holly Hunter, Evan Rachel Wood and Nikki Reed.

Miramax Film's PG-13 rated comedy The Battle of Shaker Heights, winner of the 2002 Project Greenlight competition developed by Ben Affleck and Matt Damon, also opened in limited release this week. The film took in $52,000 in 5 theaters with a $10,400 per theater average.

Set in the Cleveland suburb of Shaker Heights, the film is about a teenage World War II buff and battle re-enactor, Kelly Enswiler, who is encouraged by a new friend to take on the school bully.

Directed by Kyle Rankin and Efram Potelle, it stars Shia LaBeouf, Kathleen Quinlan, Amy Smart and Shiri Appleby.

WEEKEND COMPARISON

Last year's top three included: Buena Vista's PG-13 rated sci-fi thriller Signs, which reclaimed the No. 1 spot in its fourth week of release with $14.2 million at 3,453 theaters ($4,137 per theater average); Sony's PG-13 rated actioner xXx, which dropped to second place its third week with $13.2 million in 3,517 theaters ($3,770 per theater average); and Dimension's Spy Kids 2: The Island of Lost Dreams, which came in third in its third week with $7.5 million at 3,307 theaters ($2,295 per theater).