Unleashed is the unstoppable debut trailer for Hercules starring Dwayne Johnson and directed by Brett Ratner. Hercules muscles into cinemas in the UK and Ireland on July 25th 2014 Paramount and Metro-Goldwyn-Mayer Pictures’ film Hercules, starring Dwayne Johnson, bows on July 25. Based on Radical Comics’ ‘Hercules,’ this ensemble-action film, featuring an international cast,