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EXCLUSIVE: Kevin Hart & The Rock Compare Workouts on 'Central Intelligence' Set

By Raphael Chestang
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Everybody knows Dwayne "The Rock" Johnson is a beast in the gym, but Kevin Hart might be giving him a run for his money!

The Central Intelligence co-stars have a habit of posting their workouts on their Instagram pages and each agreed that they're the most dedicated fitness fanatics the other knows.

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Started training hard at 14yrs old. Not for fame or a competition, but because we were evicted from our small apartment in Hawaii. I reeeeaaaaalllyy hated that feeling of helplessness and never wanted that to happen again. So, I did the only thing I could control with my own two hands in hopes that one day my family would never worry about being evicted again - I trained. Truly an honor to be named for the first time ever #ManOfTheCentury. Can't wait for you guys to read this very special edition of #MuscleAndFitness. One day I'll get the psychological therapy I CLEARLY need..😂. Until then.. be humble, hungry and always be the hardest worker in the room. On newsstands NOV 30th.

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"I beat the sun up at four o'clock in the morning," Johnson told ET about his early-morning workouts, pointing at Hart. "There's one man on this earth that does that, too."

ET's Kevin Frazier caught up with the stars on the set of their upcoming film.

"Our days on set are filled with nothing but love and appreciation," Hart said.

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Johnson and Hart play high school buddies who reunite in the action-comedy. As his 20-year high school reunion approaches, a once-popular jock (Hart) is contacted by a former classmate who was bullied and humiliated back in the day (Johnson). Now the "geek" is a contract killer for the CIA, who ropes him into a secret and deadly operation.

Central Intelligence hits theaters June 17, 2016.

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