Professional actor and wrestler Dwayne "the Rock" Johnson may not have ever given a particularly life-changing performance before – but now, thanks to a 10-year-old boy, one of his performances has become life-saving.

Jacob O'Connor is being credited as a hero after he used a scene from his favorite movie to save his 2-year-old brother Dylan.

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The youngster went outside and saw his brother floating facedown in the backyard pool.

Jacob immediately thought of a scene from the Hollywood action flick San Andreas where the Rock's character uses chest compressions to save his daughter's life.

The 10-year-old started mimicking the actor's motions until Dylan started coughing up water.

Jacob then fetched his grandmother and they rushed Dylan to the hospital. Emergency personnel said that Jacob's actions almost certainly saved his brother's life. If he did not intervene as quickly as he did, paramedics may not have been able to help Dylan in time.

After spending just one day in care, the youngster was brought back home to where he can be sure that his superhero brother will always be helping to keep an eye on him in the future.

And if the story couldn't get any better already, Jacob got a shout out from his hero on Twitter after the rescue.

"Wow amazing story," wrote the Rock. "You're a real life hero. We're all proud of you!"

(WATCH the video below)

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