Batman V Superman: Dawn Of Justice

So DC as finally merged two of their biggest franchise in a full lenth feature film for the first time, we all know its been a long time coming because we've seen it done in comic books and cartoon animations many times before but never like this. Lots of fans have been waiting for this moment and judging by the new and detailed trailer that features Lex Luthor and wonder woman, amongst others, it seems like this is going to be the begining of the story that leads into the the formation of Justice League (DC's equivalent to Marvels Avengers) it's also been confirmed that Aquaman and Cyborg will be making an appearence. With all that in mind it will be interesting to see how the director Zack Snyder who also directed the last Superman movie brings it all to the big screen. The film was announced at 2013 after the release of Superman Man of Steel.

"... after Man of Steel finished and we started talking about what would be in the next movie, I started subtly mentioning that it would be cool if he faced Batman... You're in a story meeting talking about, like, who should [Superman] fight if he fought this giant alien threat Zod who was basically his equal physically, from his planet, fighting on our turf... You know, who to fight next?... But I'm not gonna say at all that when I took the job to do Man of Steel that I did it in a subversive way to get to Batman. I really believe that only after contemplating who could face [Superman] did Batman come into the picture."

— Snyder, on how Batman came into the film

Ben Affleck plays a older and more mature Caped Crusader with grey hairs and unshaven look whiles Superman is still played by the british actor Henry Cavill from the last Superman movie.

Ben Affleck                                                                          Henry Cavill

Official Warner Bros. synopsis and trailer.

“Fearing the actions of a god-like Super Hero left unchecked, Gotham City’s own formidable, forceful vigilante takes on Metropolis’s most revered, modern-day savior, while the world wrestles with what sort of hero it really needs. And with Batman and Superman at war with one another, a new threat quickly arises, putting mankind in greater danger than it’s ever known before.”

 This movie is set to expand and bring the DC comic book universe to the big screen, it's already been unveiled that cast members from Batman V Superman (Dawn Of Justice) will also star in Justice League movies and other spin-off's.

Justice League

 Here's the DC Entertainment break down of the trailer

Directed by: Zack Snyder
Produced by: Charles Roven, Deborah Snyder
Written by: Chris Terrio, David S. Goyer
Based on Characters published by: DC Comics
Starring: Ben Affleck, Henry Cavill, Amy Adams, Jesse Eisenberg, Diane Lane, Laurence Fishburne, Jeremy Irons, Holly Hunter, Gal Gadot
Music by: Hans Zimmer
Cinematography: Larry Fong
Edited by: David Brenner
Production company: DC Entertainment, Atlas Entertainment, RatPac Entertainment, Cruel and Unusual Films,
Distributed by: Warner Bros. Pictures
Country: United States 
Genre: Action, Adventure, Fantasy
Release dates: March 25, 2016 (United States)