Avengers Smash U.K. Box Office

(to be released domestically as

The Avengers

, Friday) has had the biggest superhero movie opening of all time, according to Disney. The blockbuster took in £15.8 million when it opened in the U.K. last weekend, far outpacing it’s franchise extensions,

Thor

,

Captain America: The First Avenger

and

Iron Man

. Disney is also celebrating this as its second biggest four-day weekend ever, just behind

Harry Potter and the Deathly Hallows

.

Avengers Assemble

has opened at No. 1 in all 39 countries where it has been released so far.