In regards to his "out of control" feud with Sylvester Stallone, Arnold Schwarzenegger has expressed regret.

During their prime, the two action stars were frequently paired off against one another. Leading the Rocky and Terminator franchises, respectively, the two frequently criticized one another in the media; Stallone subsequently said that "even our DNA hated each other."

The conflict ended in the late 1990s after a two-decade duration. Since then, the two have bonded to the point of being "inseparable" friends and frequently work together on projects.

"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," said Arnold Schwarzenegger during his appearance on Friday, October 27, during an episode of The Graham Norton Show.

"We attempted to derail each other when it got out of control.”However, when they both contributed money to the Planet Hollywood themed restaurant chain in the 1990s, things took a turn for the better for the couple.

Soon after, "we started flying around the world together to promote it and we became fantastic friends," the 66-year-old Schwarzenegger recalled.Since then, the stars have maintained their friendship. Schwarzenegger most recently appeared in Stallone's 2013 action thriller Escape Plan and the Expendables trilogy. Schwarzenegger continued, "He is a great human being, and we are now inseparable."

The 67-year-old Stallone first greeted the former California governor, Arnold Schwarzenegger, at the 1977 Golden Globes. At the awards ceremony, the two were seated at the same table.

Schwarzenegger took up the New Star of the Year award, while Stallone's Rocky was nominated in six categories but lost in five of them.When Rocky eventually won Best Motion Picture – Drama, Stallone would later say that Schwarzenegger had laughed at their losses, which is why he threw a bowl of flowers at his fellow actor.

The two were always striving to outdo one other in the years that followed. They would trade barbs in interviews, but in their movies, they would strive to outdo each other in terms of the quantity of kills and weaponry their characters had.

In 2013, Stallone said to David Letterman, "After a while, I started to like this one-upmanship, this competition." His pistol would be larger. I would take more lives. He would take more lives.

The gravest attack to the action star came from Schwarzenegger's accusation that Stallone employed body doubles in several of his movies. Shortly after, as a stand-in for Schwarzenegger, Stallone starred in Rocky IV (1985) against a fictional antagonist who had no distinguishable accent.

Following his role alongside Danny DeVito in the 1988 comedy Twins, wherein DeVito's character makes fun of a poster picturing Stallone as Rambo, Stallone also made the decision to venture outside of his action genre and attempt humor. Unfortunately for him, however, Stallone accidentally picked the 1991 failure Oscar!.

1992 saw Stallone play the lead in the comedy misfire Stop! Or My Mom Will Shoot. He attributed this one entirely to Schwarzenegger, who acknowledged as much in a Jimmy Kimmel interview.

"The script was a piece of s***, after reading it. Let's be truthful," he said. "I tell myself that I'm not going to work on this movie. Once they arrived at Sly, I received a call from Sly asking, "Have they ever talked to you about doing this movie?"

And I acknowledged that I had considered doing so. This movie is an incredibly creative concept. He responded, "Whatever it takes, I'll do the movie," upon learning that, as he was in competition. Naturally, the movie descended deeply into vulgarity.