It’s a belter of a film, with everyone’s favourite action star at his muscly, steely-eyed best as an amputee FBI agent turned security expert who is tasked with assessing the world’s tallest building for any and all imaginable threats.

But, when a band of pesky criminals start a blaze midway up, he has to battle to save his family, as well as the thousands of residents living inside The Pearl tower in Hong Kong.

The premise (though eerily similar to, well, just about every other tower-based thriller) sets itself apart from the rest with jaw-dropping set pieces (shout out to that scene on the crane) and a fictional skyscraper so big that even The Rock finds himself standing in its shadow.

The Pearl is just the latest in a long line of cinematic buildings absolutely key to the plot – some of which are fictional, thanks to modern-day computer wizardry, while others are real, thanks to architects, engineers, builders... you get the idea.

But wait, we hear you cry, how many Dwayne Johnson’s would you need to stack on top of one another to reach the heights of some of cinema’s other tallest towers?

Well fear not, dear reader, for we have crunched the numbers, mathsed harder than we have for decades, and created this handy, Johnson-sized scale guide so that you can answer that very question…

How many Johnsons?

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