Disney's The Chronicles of Narnia: Prince Caspian starts its international roll-out this weekend, opening in one major market in Asia, one in Europe and one in Latin America.

But the family adventure sequel is unlikely to break Iron Man's two-week grip on the marketplace as Paramount's comic book-based blockbuster approaches the $200m mark internationally.

Simultaneous with its debut in North America, Prince Caspian opens in Korea and Russia on Thursday (May 15), in Mexico on Friday (May 15) and in another ten smaller territories over the weekend through Walt Disney Studios Motion Pictures International (WDSMPI).

Produced by Disney with Walden Media, the sequel will open in Japan a week later before spreading through Asia in June and Europe in late June and July. The pattern will give WDSMPI plenty of time to work towards the $453m international total achieved by the first Narnia film, 2005 winter holiday release The Lion, the Witch and the Wardrobe.

Iron Man, from Paramount Pictures International (PPI), has no major-territory openings this weekend. But after two weeks dominating the marketplace the Marvel adaptation should produce another strong take, especially if, as distributors are hoping, a break in Europe's hot weather helps keep audiences in the multiplex.

As of Thursday, Iron Man's total international gross (including takes from non-PPI markets) stood at $177m.

In its second weekend, Fox International's What Happens in Vegas, Iron Man's closest challenger last week, spreads to another 21 smaller markets in Eastern Europe and the Middle East. The romantic comedy's international total had reached $33m by Thursday.

Speed Racer, the Warner Bros Pictures International family action outing that launched in the US and 30 international markets last weekend, has no key market openings either. Its international total as of Wednesday (May 14) was $15.5m.

Other new openings this weekend are mostly scattered through Europe and Australia.

Romantic comedy Made of Honor (with $12.4m internationally as of last Sunday) opens through Sony Pictures Releasing International (SPRI) with 500 prints in Germany on Thursday and with 140 prints in Brazil on Friday.

SPRI also opens card-counting drama 21 (with $41.3m internationally as of Sunday) in Australia on Thursday, with 190 prints.

Fox International's Shutter ($14.7m internationally to date) arrives in Australia on the same day, with 70 prints. It also gets limited releases in Germany (opening on Thursday with 18 prints) and the UK (opening on Friday with 60 prints).

PPI's Drillbit Taylor ($14.3 internationally to date) opens in Germany with 111 prints on Thursday and in Spain with 112 on Friday.

WDSMPI's Underdog opens in Italy on Friday, having grossed $21.1m internationally so far. And Universal Pictures International's Definitely, Maybe, with a $20.2m international total to date, gets a 100-print technical release in Italy on the same day.