'Avengers: Infinity War' has scored the biggest global opening for a film ever.

The Disney/Marvel superhero ensemble movie - with an all-star cast that includes Robert Downey Jr, Chris Evans and Chris Pratt - has taken an estimated $630 million in its first weekend in cinemas.

This smashes the previous record, held by car franchise film 'The Fate Of The Furious' aka 'F8', which made $534 million in its opening weekend last year.

'Infinity War' had its biggest successes in the US, with $250 million, the UK, raking in $42.2 million and Korea, where it took $39.2 million.