Getty Images at CinemaCon

What happens when two of the world's biggest action stars unite?! Umm not much -- other than a photo of Arnold Schwarzenegger and Tom Cruise looking slightly awkward together.

After speaking on stage as part of The State of the Industry: Past, Present and Future Paramount presentation, the 67-year-old Austrian and Mr. Scientology almost crashed into each other at the annual CinemaCon in Las Vegas, Nevada, on Tuesday. During the encounter, Tom immediately put his arm around the former governor's shoulder and started posing for pictures. Needless to say -- TomTom's always ready for a snap! Unfortunately, Arnie was a little distracted during the photo op -- maybe he didn't know who Tom was!

It's possible that Arnie, who was dressed like a Terminator, didn't recognize Tom because he wasn't dressed like his Mission: Impossible character Ethan Hunt

Both men were at star-studded event to promote the fifth installments of their blockbuster franchises. Arnie stars in Terminator: Genisys, which comes out on July 1, 2015. The Jerry Maguire actor has been promoting his upcoming film, Mission: Impossible Rogue Nation, due out on July 31, 2015.

During a Q&A, Tom talked about how terrified he was when he had to hang on the side of an Airbus A400M which was 5,000 feet into the sky. The superstar mocked himself after the audience was shown a photo of the actor giving a thumbs up before doing the dangerous stunt.

The single star said he was faking bravery, "I’m actually scared sh**less." Despite the obvious risk, Tom has no plans to stop: "I want to keep audiences on the edge of their seats."

We can't wait!