The first Zoolander was released over 14 years ago, and while I recall it being intermittently funny, I am not quite sure that it warranted a sequel (despite being successful, box office-wise).
Which makes me wonder why it’s taken over 14 years for Ben Stiller to come up with one. That being said, there were funny moments in the original, though for the most part if felt like one of those Saturday Night Live skits that doesn’t know when it’s outstayed its welcome.
Another thing is that Stiller, despite being primarily a comedian, always seemed to make movies (such as The Cable Guy) that despite the comedic elements, were more creepy than they were funny.
The teaser is pretty amusing, though.