The fearsome "Jurassic Park" dinosaurs have done it again, gobbling up the competition to score the biggest worldwide box office opening weekend ever with the latest franchise.

Action-packed "Jurassic World," featuring a new and particularly lethal hybrid dino, raked in a whopping $511 million globally in its debut at cinemas, according to box office tracker Exhibitor Relations on Sunday.

That was the largest weekend take in history, eclipsing Harry Potter and the Deathly Hallows: Part 2 ($483 million in 2011), according to The Hollywood Reporter.

The unprecedented haul for "Jurassic World" -- which has had largely good, if not sparkling reviews -- was boosted by the $100 million earned in China alone and the blockbuster topped the box office in 66 countries.

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In North America, "Jurassic World" made $204.6 million, just short of the record for an opening weekend in the region, held by Marvel's "The Avengers" at $207.4 million in 2012.

"This is absolutely a four-quadrant movie and is working on so many levels. The release date was awesome and everybody stayed off of our date," The Hollywood Reporter quoted Universal domestic distribution chief Nick Carpou as saying.

In addition to Chris Pratt as chief dinosaur-keeper and Bryce Dallas Howard as the park's overzealous marketing guru, the cast of the film includes a multi-ethnic array of actors.

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Chris Pratt as the chief dinosaur-keeper in the latest installation of the movie "Jurassic World" - All pictures courtesy of United International Pictures.

Co-produced by Steven Spielberg -- who directed the first two of the four films -- "Jurassic World" takes us back to the island theme park where scientists first revived T-Rex and Co for paying customers more than two decades ago.

'Eating records'

Paul Dergarabedian, a media analyst at Rentrak, told AFP that "Jurassic World" benefited from something of a perfect box-office storm.

"Nostalgia, legacy, pedigree: Three things that can make a newly updated franchise a monster," he said.

"There are many reasons 'Jurassic World' is eating box office records like a hungry Indominus Rex: the original 'Jurassic Park' was the second coming of 'Jaws' and was for many the film that defined in the psyche their personal definition of the summer movie experience.

"At the time 1993's 'Jurassic Park' was released it was the first film to ever open with over $50 million and as such was seen and loved by a massive audience that were at once repelled and thrilled by its science-run-amok premise, its homage to the dinosaurs that everyone grew up learning about and were intrigued by in grade school.

"And not least of all, the collective movie theater popcorn experience that the iconic superstar director Steven Spielberg delivered."

Universal Pictures had also been smart with its marketing of the film, he added, noting that broadcaster NBC in the US had been showing the orignal in the run-up to the latest release to drum up interest.

Dwarfs rivals

"Jurassic World" dwarfed its rivals at theaters in North America at the weekend, bumping comedy espionage spoof "Spy" to second place, with a relatively paltry $16 million.

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This is what sightseeing at the fully operational Jurassic Park looks like.

"Spy" stars Melissa McCarthy as a CIA analyst with a ho-hum desk job but a knack for being a hero in risky missions carried out by others.

But this time, she goes deep undercover in the world of arms trafficking when two agents -- played by Jason Statham and Jude Law -- get in trouble, and works to head off a global disaster.

Mega-disaster epic "San Andreas," which topped box office sales in its debut two weekends ago at $54.6 million, was in third place as the blockbuster summer season gathers pace, at $11 million, according to Exhibitor Relations.

The big-budget spectacular stars Dwayne Johnson as a rescue pilot teaming up with his estranged wife to save their daughter after earthquakes unleash chaos on Los Angeles and San Francisco.

The film's title refers to a real-life and much-feared major geological fault in California.

Fourth place went to the new flick "Insidious: Chapter 3," at $7.3 million.

It is a prequel to the story of a family connected to the spirit world, and here a psychic contacts the dead to help a teen targeted by a supernatural entity.