Ben Affleck pranks fans in the 'Batman v Superman' Batmobile

YouTube/Omaze

You might want to be careful the next time you claim Superman can take on Batman. 

Ahead of the March 25 release of "Batman v Superman: Dawn of Justice," the Dark Knight himself, Ben Affleck, surprised fans touring Warner Bros.' Studios.

"Batfleck," as fans have dubbed him, hid in the Batmobile during the tour. When the guide asked "Who do you think will actually win, Batman or Superman?" the fans shouted out "Superman!"

 Big mistake.

YouTube/Omaze

Affleck emerged from the Batmobile, surprising fans. Some of whom probably felt a little bit guilty. The encounter even led to one stunned woman asking: 

YouTube/Omaze

Affleck has taken up pranking fans as part of a campaign for Omaze. By donating to the charity campaign, which raises money for the Eastern Congo Initiative, the Durrell Wildlife Conservation Trust, and SEED Project, fans can win a trip to the New York City premiere of "Dawn of Justice" and meet stars Henry Cavill (Superman) and Jesse Eisenberg (Lex Luthor). 

Affleck's prank video is part of a series including Cavill asking children if Superman could take Batman, as well as Eisenberg visiting Midtown Comics in New York City to ask superhero experts about the battle between the two titans. The full video is below: 

 

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