It Ends with Us’ Brandon Sklenar Found Out About ‘Ridiculous’ Ryan Reynolds, Hugh Jackman Interview Prank on the Day of: ‘Insane’

Ahead of the red carpet premiere in the Big Apple, Reynolds, 47, who is married to Lively, 36, posted a funny video to social media of himself crashing Sklenar’s press day.

“It’s insane. It’s ridiculous,” he said of the prank, which also featured him being grilled by Jackman, 55, and Reynold’s mother Tammy Reynolds.

Early on in the clip, which Ryan posted to his Instagram account, he questions Sklenar about playing his wife’s on-camera lover.

“It’s not every day the husband gets to interview his wife’s love interest in a film. It’s kind of crazy,” Ryan began.

He continued, “So I saw you posing in a photo with Mrs. Reynolds — I’m sorry, what do you call her, do you guys have a nickname or something?”

Sklenar tells PEOPLE he was equally surprised to see the X-Men star also come into the interview room and question him.

“First time I knew about any of that was on the day, and the first time I was reading it is while we’re doing it,” Sklenar says.

During the bit, Jackman sat across from the actor and called him “the guy trying to replace Ryan as a husband and me as his best mate.”

According to Sklenar, Ryan and Jackman were a hilarious duo, but he couldn’t quite keep up with their jokes on the fly.

“Ryan’s so fast,” he says, adding, “I’m trying to come up with jokes and my brain is like a snail.”

One of the things that popped into Sklenar’s head during his time with Jackman was the actor’s 2012 role in the musical Les Misérables, which Sklenar complimented Jackman on in the social media clip.

“But that guy’s just ridiculous. He’s ridiculous,” Sklenar tells PEOPLE. “He’s insane.”

And as if Jackman joining Ryan for the prank wasn’t hilarious enough, the pair kept their bromance going that evening when Jackman also attended the New York City premiere and walked the carpet for the event.

It Ends with Us arrives in theaters on Aug. 9.