Earlier today, the former Governor of California posted a video on Instagram congratulating Stallone on his newest film currently in theaters, Rambo: Last Blood.

But before he did, the Terminator pulled out the knife used in Rambo, which Stallone signed and is donating to charity.

"Slv, I just saw your knife you've signed for charity... It's unbelievable, look at this knife, Arnold said before pulling out his own knife twice the size. But this is not a knife. Now this is a knife, he said referencing the famous scene from Crocodile Dundee. This is what we used in Predator. It's just a little larger than yours, but don't worry about it, he continued.

Then Arnold let out hearty laugh before composing himself and ending the video on a congratulatory note. In all seriousness, all the best of luck with Rambo this weekend, okay? You're going to be a hit. It's gonna be a smash. You're the best."

View this post on Instagram Good luck with Rambo this weekend, @officialslystallone. I loved it, and when its a hit Im going to buy you a new knife to celebrate. A post shared by Arnold Schwarzenegger (@schwarzenegger) on Sep 18, 2019 at 11:03am PDT

Funny enough, Schwarzenegger and Stallone weren't always best beds.

"We hated each other in the '80s because we were both in the same business, we wanted to outdo each other. It was all out war. It was a competition of who has the most muscles, who kills the most people on screen, who kills in the most unique way, who makes more money at the box office," Schwarzenegger said while speaking at the Hindustan Times Leadership Summit in 2014. "Finally, in the '90s we became kind of friends, and ever since then we have been friends. Initially, you need a competitor, someone that you hate... because that's what drives me," he said.