VIDEO : Exclusive Interview: Zack Snyder explains why 'Batman v Superman' is not 'Man of Steel 2'

The superhero blockbuster 'Batman v Superman: Dawn of Justice' features the newest versions of the title characters meeting for the first time. The storyline follows on from the events of 2013's 'Man of Steel', but in this exclusive interview, director Zack Snyder explains why he chose not to call the new movie 'Man of Steel 2'.