For almost 25 years, Dwayne Johnson (aka The Rock) has tried to make himself into a movie star, with mixed results. While his leading-man roles did okay, his biggest successes have been as part of franchises like Fast & Furious, Jumanji, and Moana,none of which were entirely on his broad shoulders. Having possibly exhausted his attempts at appealing to broad audiences, he’s finally decided to test out his dramatic acting abilities in The Smashing Machine. Johnson plays Mark Kerr, a mixed ma...