Nat Wolff says he found it hard to punch “good guy” Patrick Schwarzenegger in a scene for their movie Stuck in Love.
Nat and Patrick star alongside Lily Collins and Greg Kinnear in the movie which chronicles a family’s struggle with romantic relationships.
Patrick is the child of action movie legend Arnold Schwarzenegger and Maria Shriver.
Nat claims it was difficult to shoot the scene for Stuck in Love because Patrick is such “a good guy”, not because he is bodybuilder Arnold’s son.
"I was so excited when I read the script that I get to do that," Nat told MTV News. "It turns out that the Terminator’s son is a really good guy, which made it a little bit harder. But he's such a jerk in the movie that it was pretty easy to pretend he's a jerk in real life and punch him as hard as I could."
The scene sees Nat’s character punch Patrick to protect his sister, played by Lily.
Nat surprisingly tapped into superhuman strength while filming the imaginary altercation.
"The funny thing was, it took a couple of takes where I was doing it, and I think it was [director] Josh [Boone] who came up to me and said, 'Don't you think your hand would hurt after you punch him?'” recalls Nat. “I said, 'Yeah, that's probably true.'
“Because I was thinking I was some superhero or some boxing champion. In reality, if I was to punch you right now, I'd probably break my hand. So there's this moment when I'm sort of in pain, and I like that."
Patrick, 19, plays a supporting role in the film which is due for a limited release next month.
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