That is funny that you guys bring up the WWF/Arnold thing. When End of Days came out in November 1999, Arnold appeared on Smackdown, the WWF's Thurday night show. Anyway, Vince McMahon gave Arnold a belt to celebrate his career in film (really just a shameless plug for the movie). And Vince McMahon looked like a whole lot bigger than Arnold. But that was nothing compared to what happened later, when Arnold interferred in the Rock vs. HHH match. Rock and HHH looked like monsters next to Arnold. It was very surprising, to say the least.
Obviously, Arnold has about twenty years on Rock and HHH, but it was just astonishing to see that Arnold isn't the biggest guy on the planet, like he was when I was ten.