The new Ezra Miller-starring superhero movie "The Flash" follows the titular and super-fast hero on a time-bending odyssey that literally sees "worlds collide" just as the tagline suggests, in a jaw-dropping climactic sequence showing various alternate-universe versions of certain DC mainstay characters. It's sure to thrill some, while others will be left scratching their heads.

Karl Urban is reportedly in 'final' discussions to play Johnny Cage.