Ben Stiller, Owen Wilson We're Real Stiffs in Italy!!!

2/1/2016 6:55 AM PST BY TMZ STAFF

0201_zoolander_2_valentino_launchBen Stiller and Owen Wilson are nothing but window dressing. 

Fans swarmed the window of the Valentino store in Rome when they realized these were no ordinary dummies ... the mannequins were real, and really famous.

Stiller and Wilson co-star in the upcoming "Zoolander 2" and they're on a worldwide tour to promote the flick.

Stiller busted his classic Blue Steel face and Wilson sported a bright yellow jacket visible from Florence.