Clooney earned $239 million in pretax earnings from June 2017 to June 2018 due to his lucrative business venture with tequila company Casamigos which was sold to British liquor conglomerate Diageo for $700 million last June.
The deal also included the potential to earn an additional $300 million over the next decade.
Clooney walked away with an estimated $233 million from Casamigos with his remaining earnings coming from endorsement deals and older films.
In second place is Johnson with $124 million which the highest amount earned for front-of-camera roles in Forbes history the publication said.
The action star earned the large amount from his upfront paychecks on films and from earning a cut of the profits made on projects such as "Jumanji: Welcome to the Jungle."
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In fifth place is Jackie Chan, earning $45.5 million as China's biggest movie star.
Rounding out the rest of the Top 10 is Will Smith ($42 million), Bollywood star Akshay Kumar ($40.5 million), Adam Sandler ($39.5 million), Bollywood star Salman Khan ($38.5 million) and Chris Evans ($34 million).
Together, the top ten highest-paid actors earned $748.5 million, compared to the $186 million earned by the top ten highest-paid actresses.
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