Ellen DeGeneres loves giving her guests a good scare, and Ben Affleck is the latest to fall victim to her hijinks.

While on Ellen promoting Batman v Superman, “Wonder Woman” popped up to give the actor a shock.

“I was genuinely scared by that,” Affleck said, after lurching back from the prankster. DeGeneres then showed him an instant replay, sending Affleck into a near-tears fit of laughter.

Affleck also dug into a more serious subject, discussing his divorce from Jennifer Garner, which they announced last year. “We’re good friends and we’re doing our best and our kids are fabulous and we’re working our best for them,” he said.

Of the three children the couple share, Affleck said they’re psyched about his superhero role – one of the reasons he took on the part of Batman. “I haven’t done anything my I haven’t done anything that my kids could see for a long time,” the actor said. “So I thought that would be kind of cool.”

His 4-year-old son, Samuel, is particularly thrilled. “He thinks I’m in the Batcave now,” Affleck said. “I say to him, ‘Dad’s gotta go away now,’ and he goes, ‘You’re going to the Batcave.’”

Batman v Superman: Dawn of Justice opens in theaters next Friday. You can see part of Affleck’s Ellen interview above.

This article originally appeared on EW.com

Contact us at editors@time.com.

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