"Batman V Superman: Dawn of Justice" is almost two years away but fans are eagerly waiting for its first trailer. According to the reports, moviemakers planned to launch the trailer at San Diego Comic Con to be held in July, 2014. But the latest update is that the much-anticipated trailer leaked ahead of SDCC. There is also a description of the trailer available. Read on to find out how it looks. Also, know more about the newest cast member Scoot McNairy. [Warning: Spoilers Alert!]

This article contains potential spoilers from "Batman V Superman: Dawn of Justice." Read at your own risk.

Citing the claims made by Comic Central City, KDramaStars reported that the trailer leaked online and gives a glimpse of General Zod, Batman and Batcave. Although video of the said trailer cannot be found online, the Web site has posted a brief description of it.

According to the description, "Batman V Superman: Dawn of Justice" first trailer opens with a "dark scene" and with the "voiceover of General Zod." General Zod is the DC Comics supervillain and one of the biggest enemies of Superman.

The voiceover says, "You are not alone message" and the screen pans out and shows that the scene is taking place in Batcave. When the shot pans out further it gives a glimpse of the back of Batman without his "cowl." It is further revealed that every screen in the batcave shows General Zod giving out the message to him. As soon as the message ends, Batman covers his head with the cowl and turns to the camera revealing himself for the first time. The trailer ends here after displaying "Batman V Superman: Dawn of Justice" logo.

However, the abovementioned description must be treated like a rumour as there is no confirmation on the authenticity of the same. It remains to be seen, if the trailer released at SDCC matches the description provided by the Web site.

Umberto Gonzalez of Latino Review, earlier reported that DC/ Warner panel will display the "Batman V Superman: Dawn of Justice" trailer at Hall H at the convention. He tweeted the message to millions of Batman and Superman fans:

HOT #SDCC2014 RUMOR! The DC/Warners panel will show a hot clip from BATMAN v SUPERMAN: DAWN OF JUSTICE. FIND SPOT @ HALL H line NOW! RT

— Umberto Gonzalez (@elmayimbe) June 22, 2014

Meanwhile, it is reported that a new actor has been added to the star-studded cast list of "Batman V Superman: Dawn of Justice." Ben Affleck's "Argo" co-star Scoot McNairy is joining the team of superheroes, according to Deadline. However, details about actor's role remain unknown. Scoot is not only an actor but also a film producer. Besides his role in "Argo" he is also known for his work in "Killing Them Softly," "Promised Land" and "Monsters." As a producer, he has worked in "In Search of a Midnight Kiss," "Straight A's" and "Frank and Cindy" which is currently in post-production.

Also starring Henry Cavill, Ben Affleck, Diane Lane, Jesse Eisenberg and Amy Adams, "Batman V Superman: Dawn of Justice hits the theatres on May 6, 2016.