Will Smith Gets Pranked by Henry Cavill at Comic-Con 2016 and His Reaction Is Hilarious

Smith was signing autographs at the time

Henry Cavill is the real Joker!

The actor, who plays Superman in Zack Snyder's superhero films, pranked Will Smith at San Diego Comic-Con International 2016 over the weekend. While the latter star, who was promoting David Ayer's new villain ensemble film Suicide Squad, was signing autographs, Cavill approached him for a photo, wearing a Guy Fawkes mask (seen in V for Vendetta). Scores of people attending the annual pop culture convention wear costumes.

As they posed, Cavill then removed the mask from his face, which Smith recognized after a delay of several seconds and after the photo was already snapped, spurring the star to bust out his trademark hearty laugh. Cavill posted a video of the prank on his Instagram page Saturday.

A video posted by Henry Cavill (@henrycavill) on Jul 23, 2016 at 4:28pm PDT

"Best Comic Con yet," he wrote. "I got to be here for Justice League but couldn't miss Suicide Squad. #SDCC2016 #JusticeLeague #SuicideSquad."

Cavill also shared photos of him wearing his mask with fans.

Suicide Squad is set for release on Aug. 5. Smith plays Floyd Lawton, aka Deadshot, in Suicide Squad, which also stars Jared Leto as the Joker, Margot Robbie as his love interest Harley Quinn, Divergent's Jai Courtney as Captain Boomerang, Cara Delevingne as June Moone / Enchantress and Ben Affleck as Batman, a role he first played alongside Cavill in Batman v Superman: Dawn of Justice.

He also reprises his role in Justice League, whose first trailer was screened at Comic-Con Saturday.