Former Predator slayer Arnold Schwarzenegger said his rivalry with Sylvester Stallone in the 1980s and 90s "got out of control," primarily because a lot of their movies during that time had been released nearly back-to-back.

In an episode of "The Graham Norton Show" (via NME), Schwarzenegger went on to explain the Hollywood rivalry.

"We were movie rivals, but we took the competitiveness to the extreme -- we each had to have the best body, we had to kill more people in our films, and we had to have the biggest guns," Schwarzenegger said. "It got out of control, and we tried to derail each other."