Sarah Michelle Gellar, Taylor Momsen and Blake Lively are among those paying tribute to Michelle Trachtenberg, who died Wednesday.

Chace Crawford is returning to the Upper East Side -- or whichever part of New York City the one-percenters occupy these days -- for his new movie, Nighthawks -- and ET can exclusively debut the trailer. Think of Nighthawks as Gossip Girl meets The Great Gatsby, with Crawford starring as Stanley, a Midwest transplant who is introduced into the New York nightlife scene by his affluent, calculating roommate Chad (Kevin Zegers). "The problem with our friend Stan here is he's sensitive," Chad says in the trailer. That ominous precedent seemingly involves a secret society, self-proclaimed degenerates and a mysterious band of mask-wearing millennials known as the Nighthawks. RELATED CONTENT:'The Boys' Cast on What to Expect From the New Superhero SeriesChace Crawford Says the 'Gossip Girl' Reboot Makes Him 'Feel Old'How 'Gossip Girl' Reboot Will Address the Original Characters

The 34-year-old actor stopped by Watch What Happens Live With Andy Cohen on Thursday and discussed how the recently announced Gossip Girl reboot made him feel. Crawford admitted, "When I heard about it, it just made me feel old, you know? While none of the original cast is set to reprise their roles -- the original series also starred Leighton Meester, Blake Lively, Ed Westwick and Penn Badgley -- the update will be led by the team behind the original series, including Joshua Safran, Josh Schwartz and Stephanie Savage. Crawford even jokingly predicted that, in a potential reboot, the whole original cast would be replaced by younger actors, something that now aligns with what HBO Max has planned for its Gossip Girl iteration. RELATED CONTENT:How 'Gossip Girl' Reboot Will Address the Original Characters'Gossip Girl' Is Getting a Reboot -- Here's What to ExpectChace Crawford Addresses Possible 'Gossip Girl' Reboot (Exclusive)

Gossip Girl is getting a remake centered on the next generation of Upper East Siders, but there were conversations about revisiting the original characters -- a door that is being left open, at least for the moment. Schwartz addressed why it made sense now for a new Gossip Girl iteration to freshen up the beloved property. The new Gossip Girl will take place eight years after the original Gossip Girl website went dark and a new generation of New York private school teens are introduced to the social surveillance of Gossip Girl. In February, when ET caught up with Crawford, who played Nate on the original series, he wasn't sure if Gossip Girl should ever be rebooted. RELATED CONTENT:'Gossip Girl' Is Getting a Reboot -- Here's What to ExpectChace Crawford Addresses Possible 'Gossip Girl' Reboot (Exclusive)Blake Lively Makes Cheeky Reference to Her 'Gossip Girl' Character in Stylish Instagram Post

Safran called the show an "extension" of the original series and provided a general logline to give fans an idea of what they can expect. "Eight years after the original website went dark, a new generation of New York private school teens are introduced to the social surveillance of Gossip Girl," the logline reads. In February, when ET caught up with Crawford, who played Nate Archibald on the original series, he wasn't sure if Gossip Girl should ever be rebooted. "I don't know what the way in would be to the story, to get everyone back together," he added. RELATED CONTENT:Chace Crawford Addresses Possible 'Gossip Girl' Reboot (Exclusive)Blake Lively Makes Cheeky Reference to Her 'Gossip Girl' Character in Stylish Instagram PostKristen Bell Reprises Her 'Gossip Girl' Role to Read President Donald Trump's Tweets