Sylvester Stallone
Stallone has always been considered a opponent to Arnold Schwarzenegger as an action hero actor. Hints to this have been made in both of their movies. In Schwarzenegger's Last Action Hero, Stallone is seen as playing the Terminator in a video advertisement in the film's  real life. In Stallone's Demolition Man, there is a futuristic reference to the Arnold Schwarzenegger Presidential Library. Also in the movie Twins, Arnold Schwarzenegger walks by a giant movie poster for Rambo III. He glances at the size of Stallone's biceps on the poster, and then he feels his own and laughs at how much smaller Stallone's are. According to both Stallone and Schwarzenegger, despite their on camera "rivalry", they are both very close friends. While promoting the movies Rocky Balboa and Rambo on The Tonight Show with Jay Leno, Stallone revealed that in the 1980s he and Schwarzenegger looked at each other as "Cain and Abel." Stallone then said that, in the 1990s, he and Arnold became the friends they are today. They became one time business partners in Planet Hollywood.