Dwayne Johnson Says 'Black Adam' Was the "Hardest Undertaking" of His Entire Career

Dwayne Johnson took to social media on Friday to share that Black Adam, which has officially wrapped production, was the most difficult movie he has made to date -- and looking at his sprawling repertoire of action-packed films, which includes the Fast & Furious franchise, Skyscraper, San Andreas and many more, that statement seriously holds a lot of weight."Incredible journey," Johnson wrote on Twitter. "Hardest undertaking of my entire career physically [and] mentally. Worth every second. Boun...