British comedy Run, Fat Boy, Run dominated the UK box office for the fourth weekend in a row, keeping a firm hold of the number one slot with a $2.01m (£988,788) take from 398 sites.

The film, released by Entertainment Film Distributors, is one of four films that refused to budge from the top slots this weekend. The Simon Pegg and Thandie Newton starrer fell by just 18% over the three-day period and has amassed $15.9m to date.

Universal Pictures International's (UPI) Atonement kept a firm hold of the number two position. The Working Title production generated more than $1.7m from 413 sites for a $4,275 (£2.096) site average and has taken $17.3m to date in the territory.

UPI also took the number three slot in the chart this weekend with Adam Sandler comedy I Now Pronounce You Chuck & Larry. The film managed to hold on to third position despite dropping by 24%. It took $1.7m (£823,592) from 406 sites and has grossed more than $5m (£2.4m) in its second weekend.

Judd Apatow production Superbad, from Sony Pictures Releasing International (SPRI), stayed at number four this weekend with a $1.5m (£758,045) take in its third weekend, for a $9.7m (£4.7m) cumulative total in the UK. The hit teen comedy has already generated nearly $120m in the US.

Paramount Pictures International (PPI) had its only UK top 10 film this weekend with Rob Zombie's Halloween. The new horror adaptation was the highest new entry this weekend, taking $1.2m (£620,844) from 372 sites for a $3,400 (£1,665) site average.

Tony Gilroy (writer of The Bourne franchise) directed Michael Clayton, this weekend's number six at the UK box office. The thriller, released by Pathe Distribution and starring George Clooney, grossed $1.2m (£601,196) from 295 screens in its first weekend.

Warner Bros took the number seven slot with its new entrant The Brave One, starring Jodie Foster. The drama, which earned $1.01m (£497,838) from 377 sites, tells the tale of a woman who is brutally attacked in New York and follows her path for revenge.

Entertainment had another top 10 hit with new release Mr Woodcock, starring Billy Bob Thorton and Susan Sarandon. The comedy was in at number eight, and fell just shy of the $1m mark with a $984,142 (£483,017) take from 238 sites.

The Bourne Ultimatum, from UPI, dropped out of the top five to number nine this weekend. The third part of the action franchise, which boasts an international tally of more than $162m, took $726,245 (£356,441) from 233 sites in the UK at the weekend. It has a $47m cumulative total in the territory after seven weekends.

Jet Li starrer War, distributed by Lionsgate UK, made the top 10 in its opening weekend, taking $421,946 (£207,091) from 182 sites. The action thriller had a $2,318 (£1,135) site average over the three-day period.

Quentin Tarantino's Death Proof saw the steepest drop over the weekend the film, released by Momentum Pictures, fell by 81% in its second weekend.

SPRI's family animation Surf's Up sailed up 6% over the weekend to number 13 while The Simpsons Movie, Transformers and Harry Potter And The Order Of The Phoenix all remained in the top 20 after more than 10 weeks on release.

The top 20 films in the UK generated $14.2m from the period of September 28-30 and were collectively down by 15% compared to the same period last year.

For the full UK chart see Screen Daily's global box office.