20th Century Fox's adult thriller Unfaithful is enjoying success as counter-programming to the chart storming blockbuster fare, Spider-Man and Star Wars: Episode II.

Aimed at a more mature audience the film has enjoyed a host of strong openings and performances in Europe since debuting in Sweden on May 31. With an international tally of $12.8m to date to add to its $50.5m and counting US gross, and with a host of territories to go, Unfaithful looks to be one of the sleeper hits of the year.

This week saw the film launch in Spain where it claimed the top spot from fellow Fox title, Episode II. Opening with an impressive $1.3m (Euros 1.4m) from 298 screens the film showed a strong average of $4,330.

Starring Richard Gere, Diane Lane and Olivier Martinez and directed by Adrian Lyne (Fatal Attraction), Unfaithful also impressed this week in Belgium. Although it had to settle for second place in the chart to fellow opener Blade II, it still took a powerful five-day opening of $200,392 (Euros 211,213) from 50 screens for an average of $4,008.

The title also launched in Germany where it scored third place with a $1.16m (Euros 1.22m) take from 421 - its $2,745 average bettering that of second-placed 40 Days And 40 Nights ($2,392).

Unfaithful is also continuing to play well elsewhere. In its second week in the UK and Ireland it dropped off just 21% from its opening weekend and had grossed $2.6m (£1.8m) after 10-days. It played particular well in Dublin where over its first full week it took top position in the chart, outperforming 40 Days and Episode II, taking $102,209 (Euro 107,728) from nine screens.

France is also showing strong figures with Unfaithful holding fourth position over both of its first two weeks. It has sold 282,658 tickets to date from 399 screens, equivalent $1.5m.

Other territories to receive it include Sweden ($220,021 so far), Denmark ($182,681 in 10 days) and Switzerland ($67,165 after 11 days at nine screens in the French region of the country), Sweden ($220,021 so far).

Unfaithful opens in Argentina and the Netherlands this week, the German region of Switzerland on June 27 and reaches Russia, Australia, Poland and Iceland in July