The actor is now advocating for the test he credits with saving his life.
Ben Stiller was diagnosed with prostate cancer at age 48.
In outtakes from the sketch, "Artificial Intelligence" guest-starring Ben Stiller, the three actors can barely keep it together.
ET caught up with Justin Theroux at the Zoolander 2 premiere in New York City on Tuesday.
ET caught up with Justin Theroux at the Zoolander 2 premiere in New York on Tuesday.
Like father, like son!
The cast of 'Zoolander 2', including Ben Stiller and Penelope Cruz, also hit the runway.
The 20-year-old model stunned at a faux fashion show, which included Ben Stiller and Penelope Cruz, before the premiere in New York City.
From fragrance commercial parodies to walking the runway at Paris Fashion Week, Ben Stiller and Owen Wilson have gone all out to promote Zoolander 2.
The models -- and an adorable puppy! -- strutted their stuff on Friday.
The latest Zoolander 2 trailer finds Ben Stiller's Derek Zoolander starring in a fragrance commercial parody.
The 'Zoolander' co-stars stay in character for their new 'Vogue' feature.
The model is really, really good looking.
Ben Stiller is back to avenge the death of Justin Bieber in 'Zoolander 2.'
