Fox International’s Rio will look to stay top for a third consecutive weekend as the film bears down on another box office milestone. Meanwhile Marvel Studios’ Thor descends on Australia.

The animated hit Rio has raced to $145.5m and opens this weekend in four markets. Meanwhile Dum Maaro Dum arrives in India, the UK, Australia and a handful of diaspora markets in the Middle East.

The period romance Water For Elephants opens day-and-date with North America in Russia and seven other markets. Gulliver’s Travels stands at $180.9m while Black Swan has amassed $190.6m.

Just Go With It — now available as a premium VoD release in the US through DirecTV — opens through Sony Pictures Releasing International in Argentina and Hong Kong. Country Strong arrives in Spain and South Africa.

Red Riding Hood opens through Warner Bros Pictures International in France, Germany, Italy, Brazil and Mexico.

The comedy remake Arthur arrives in the UK and Australia, while Hall Pass gets into Russia and New Line’s The Rite opens in South Korea.

Disneynature’s African Cats opens on Earth Day [22] in Mexico and Chile and arrives in Hong Kong a day later. Walt Disney Studios Motion Pictures International also opens Mars Needs Moms in Japan and South Africa and stands at $17.8m.

The Tempest touches down in Australia and New Zealand and there’s an early push this weekend for Winnie The Pooh in Italy, Spain, the Netherlands and Colombia. Local acquisition Zokkomon, which recently closed the Indian Film Festival Of Los Angeles, opens in India on Apr 22.

Universal’s Fast & Furious 5 opens through UPI day-and-date with North America in the UK, Australia, South Korea and New Zealand.

Hop stands at $33.2m and bounces into 10 new markets including Brazil, Argentina and Hong Kong. Devil opens in in France

Paramount Pictures International launches the first of Marvel Studios’ two 2011 releases, Thor, in its first market of Australia. The action film invades the international marketplace next week.

Justin Bieber: Never Say Never has grossed $23.2m and debuts in Italy, while No Strings Attached on $74.1m opens in Japan and Beastly arrives in the UK.