An extra from the highly-anticipated and upcoming DC blockbuster film, 'Batman v Superman: Dawn of Justice', allegedly revealed major plot details about the film.

The insider allegedly risks a $5 million lawsuit from DC for not abiding by the confidentiality agreement set by the producers of the film, as everyone from the cast to the crew have been "sworn to secrecy."

'Batman v Superman: Dawn of Justice' was officially announced at last year's Comic-Con on July 20, since then the cast and crew have been tight-lipped about the monumental superhero movie.

However, the extra spilled the beans on what he knew about Ben Affleck blockbuster given that he remains anonymous. He revealed the information he know to a reporter at a local news station, WILX-10 News.

According to Reporter Kirk Montgomery, Batman's sidekick, Robin (also known as Carrie Kelley in the movie) will be played by a woman. The actress allegedly taking on the role of Robin is, 'Hunger Games: Catching Fire' actress Jenna Malone.

"The character of Robin as scripted now is female actress Jenna Malone was spotted in Detroit," Montgomery stated.

Rumors started spreading earlier this month, and claimed that Malone will be part of 'Batman v Superman: Dawn of Justice', after an interesting picture appeared on her Instagram on Oct. 3.

In the photo Malone had newly dyed hair- a bright "cartoon-esque" red- with a cryptic caption saying "Drastic times call for drastic measures," Daily Mail reports.

A female Robin is not a far-fetched or surprising idea either, that version of Carrie Kelley appeared in Frank Miller's 'The Dark Knight Returns'. That film was directed and written by the same person who is working on the current film, Zack Synder.

Aside from that, Batman had several female sidekicks including Batgirl played by Yvonne Craig in the 1960s and Alicia Silverstone in 1997 film, 'Batman and Robin'.

The extra further revealed that the cast is currently filming a scene at and Art Museum on Michigan State University campus-involving a "fight" between Bruce Wayne (Ben Affleck) and Lex Lluthor (Jesse Eisenberg) and allegedly involving paparazzi, fireworks and special effects.

The film would reportedly star Henry Cavill as Superman, while other cast include big names like Laurence Fisburne, Amy Adams, Jeremy Irons and Holly Hunter.

 'Batman v Superman' is slated to premiere on March 25, 2016.