Dhaka, Sept. 3 -- Dwayne Johnson delivered the most emotional moment yet at this year's Venice Film Festival as his new film 'The Smashing Machine' earned a thunderous 15-minute standing ovation on Monday night, sparking immediate Oscar buzz for the actor. Johnson, 53, sobbed uncontrollably as the audience at the Lido rose to their feet, applauding his performance as Mark Kerr, the troubled UFC heavyweight champion. The emotional reception was among the longest of this year's festival. Director Benny Safdie and co-star Emily Blunt joined Johnson on stage, embracing him as the ovation carried on. The real Mark Kerr, in attendance, was also seen in tears during the screening. Best known for blockbusters like 'Jumanji', 'The Mummy Returns', ...