Fast and Furious 7 has stayed at the top of the US box office for a fourth week in a row, adding another $18.3m to its $320.5m total box-office takings. The film also crossed the $1bn line in non-US territories over the weekend, making it only the third film of all time to do so, after Titanic and Avatar. Its $1.3bn worldwide total now makes it the fifth biggest film of all time, and it looks likely to overtake Harry Potter and the Deathly Hallows: Part 2 which is currently at number four with $1.34bn.

While Avengers: Age of Ultron doesn’t open stateside until the end of this week, it’s already started its international rollout to great success. It was number one in every territory it opened in, and has made $201.2m already. This is an impressive number, given that it also hasn’t opened yet in China or Japan, two of the most important moviegoing markets.

Vin Diesel managed to hold off The Age of Adaline, a romantic drama starring Blake Lively, which started the weekend ahead but slowed down for a $13.4m opening at number three. The film is likely to make its $30m budget back.

Slightly ahead was Paul Blart: Mall Cop 2 which had a surprisingly slim 35% decline after its first weekend for a $15.5m haul. It has now amassed $43.9m in two weeks.

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Elsewhere, animated adventure Home picked up another $8.3m for a total of $153.7m, and laptop-based horror Unfriended took in $6.2m for a tally of $25.2m. That number is particularly impressive given its $1m budget.

In limited release, the cautionary sci-fi tale Ex Machina continued to do huge business. The film has been rolled out slowly in the US, and over the weekend it went from 39 sites to 1,255 and made $5.4m, to push it to sixth position. It’s become a surprise sleeper hit, months after its UK release.

Outside of the top 10, faith-based release Little Boy was a flop, making just $2.8m from 1,045 locations.

US box office chart 24-26 April