Cameron Crowe has quietly begun rolling cameras in Hawaii on a now-untitled romantic comedy, starring Bradley Cooper, Rachel McAdams, Emma Stone and Danny McBride.

Rather than an official “start of production” news release, Crowe simply posted a photo of a clapboard on his official site The Uncool with the following missive:

“The Untitled Hawaii project is officially underway. As you can see above, the production began filming on September 26th with Eric Gautier (“Motorcycle Diaries,” “Into the Wild”) as Cinematographer. Stay tuned as we begin to share images and much more from the set very soon. Mahalo!”

Crowe will direct “Untitled Hawaii” from his own screeplay and produce via his Vinyl Films banner with Scott Rudin.

The film, formerly called “Deep Tiki” and “Volcano Romance,” centers on the romance between a military contractor overseeing a satellite launch and an Air Force officer.

Crowe shot his last film, “We Bought a Zoo,” in Southern California.