Following yesterday's news that The Walking Dead star Lauren Cohan has joined the cast, Warner Bros. has ramped up their marketing campaign for Batman v Superman: Dawn of Justice with a new video from director Zack Snyder and a poster via Yahoo! Movies, which asks "Who Will Win?" The filmmaker revealed in this video that it's time for fans to choose a side, asking them to tweet using the hashtags #Batman or #Superman to choose their alliance to these heroes. This epic showdown will hit theaters nationwide March 25.

This superhero adventure will mark the first time both Batman (Ben Affleck) and Superman (Henry Cavill) have been seen on the big screen together in cinematic history. The movie will also introduce Gal Gadot as Wonder Woman, whose stand alone movie is currently in production and set to hit theaters on June 23, 2017. It has also been rumored that this movie will introduce the rest of the Justice League, before Justice League Part 1 and Justice League Part 2 hits theaters in 2017 and 2019, respectively.

Following his titanic struggle against General Zod, Metropolis has been razed to the ground and Superman is the most controversial figure in the world. While for many he is still an emblem of hope, a growing number of people consider him a threat to humanity, seeking justice for the chaos he has brought to Earth. As far as Bruce Wayne is concerned, Superman is clearly a danger to society.Batman fears for the future of the world with such a reckless power left ungoverned, and so he dons his mask and cape to right Superman's wrongs. The rivalry between them is furious, fueled by bitterness and vengeance, and nothing can dissuade them from waging this war. However, a dark new threat arises in the form of a third man: one who has a power greater than either of them to endanger the world and cause total destruction.

From director Zack Snyder comes Batman v Superman: Dawn of Justice, starring Oscar winner Ben Affleck (Argo) as Batman/Bruce Wayne and Henry Cavill as Superman/Clark Kent in the characters' first big-screen pairing. The film also stars Oscar nominees Amy Adams (American Hustle) as Lois Lane, Jesse Eisenberg (The Social Network) as Lex Luthor, Diane Lane (Unfaithful) as Martha Kent, and Laurence Fishburne (What's Love Got to Do with It) as Perry White; Oscar winners Jeremy Irons (Reversal of Fortune) as Alfred, and Holly Hunter (The Piano) as Senator Finch; and Gal Gadot as Wonder Woman/Diana Prince. Zack Snyder directed from a screenplay written by Chris Terrio and David S. Goyer, based on characters from DC Comics, including Batman, created by Bob Kane with Bill Finger, and Superman, created by Jerry Siegel and Joe Shuster. The film is produced by Charles Roven and Deborah Snyder, with Wesley Coller, Geoff Johns and David S. Goyer serving as executive producers.

Batman v Superman: Dawn of Justice launches Warner Bros. new DC Comics slate of movies, including Suicide Squad (August 5, 2016), Wonder Woman (June 23, 2017), Justice League Part 1 (November 17, 2017), The Flash (March 23, 2018), Aquaman (July 27, 2018), Shazam! (April 5, 2019), Justice League Part 2 (June 14, 2019), Cyborg (April 3, 2020) and Green Lantern Corps. (June 19, 2020). What do you think about this new Batman v Superman: Dawn of Justice poster and video? Chime in with your thoughts, and stay tuned for more, as we get closer to the March 25 release.