The UK box office continued to be dominated by Buena Vista International's Signs last weekend but saw two high-profile entries vying for audience attention as My Big Fat Greek Wedding launched nationwide and Road To Perdition debuted in London.

Signs dropped off just 23% from its opening three-day weekend to take $4.1m (£2.65m) from 440 sites for a significant average of $9,375. Its 10-day total now stands at $12.5m (£8.1m).

20th Century Fox's Road To Perdition took seventh position in the national chart after opening at 32 sites for a powerful opening of $398,188 (£256,035). The limited-release success bodes well for Sam Mendes' drama when it goes wide next week.

However, Road To Perdition's result of $293,885 (£188,968) from its 19 venues in London's West End, while achieving a very strong average of $15,468, was unable able to match the $364,002 from 15 sites recorded by Signs in the West End last weekend. This weekend also saw My Big Fat Greek Wedding score a better West End average than that of Perdition with a $17,714 per site result from the $283,420 West End total at 16 venues.

Another inspired acquisition by Entertainment, My Big Fat Greek Wedding was the highest new opener of the week, landing second position with a stunning $2.3m (£1.5m) from 341 sites. Also making the top five was Icon Film Distribution's Swimfan taking fourth place with $616,524 (£396,425). Playing at 324 locations the teen-thriller managed a so-so average of $1,903.

UIP's The Bourne Identity dropped off just 22% from its previous weekend to take $1.3m (£856,800) from 404 sites and third place. BVI's Insomnia also continued to show legs, falling only 21% from the previous weekend and rounding out the top five with $584,642 (£375,925) at 268 venues. Bourne Identity has a tally of $8.8m after three weeks, Insomnia $6.7m after four.

The only other opener to make the chart this week was Eros International's 12th-placed Shakti - The Power. The Bollywood title took a strong $165,966 (£106,716) from 33 sites for an average of $5,029.