'Batman v. Superman' Trailer Leaks on YouTube

The trailer was taken down minutes after being leaked on multiple sites.

A trailer for Zack Snyder's upcoming Batman v. Superman: Dawn of Justice leaked online on Thursday before being taken down minutes later.

A YouTube user uploaded the handheld camera or camera phone capture of the trailer, which has Portuguese subtitles.

The trailer begins with a commentator's voice asking, "Is it really surprising that the most powerful man in the world should be a figure of controversy?"

As footage of Superman plays, numerous commentators' voices overlap one another with their opinions of the superheroes, including "We as a population on this planet have been looking for a savior" and "Maybe he's just a guy trying to do the right thing."

A blurred image of Ben Affleck's face appears shortly before a masked Batman appears, followed by the two superheroes coming face to face.

The highly anticipated footage was set to premiere in Imax theaters on Monday.

On Wednesday morning, Snyder teased the trailer by releasing a short excerpt on Twitter.

Batman v. Superman: Dawn of Justice will be released on March 25, 2016, and stars Affleck as Batman and Henry Cavill as Superman. The film also stars Amy Adams.