SOUTHFIELD, Mich. — The actor who plays the caped crusader in the upcoming “Batman v. Superman Dawn of Justice” film surprised a group of children at a Detroit-area superhero party.

Ben Affleck and his actress wife, Jennifer Garner, stopped Sunday at Detroit Kid City in Southfield and asked if they and their 2-year-old son, Samuel, could join the party.

Affleck is in Detroit for the filming of the Warner Bros. Pictures movie. The movie’s release is set for May 2016.

– From news service reports