“Island Zero,” the locally produced horror movie shot earlier this year on the Midcoast and Islesboro, will be screened Saturday, Oct. 29, at 7 p.m. at the Camden Opera House. Admission is free but by invitation only; to get an invite, email islandzeromovie@gmail.com.

Those who want a glimpse of the low-budget monster movie — written by bestselling author Tess Gerritsen of Camden, directed by her son Josh Gerritsen of Lincolnville and produced by Camden native Mariah Klapatch — before then can catch the trailer during Damnationland 2016, which premieres Friday night, Oct. 14, at Portland’s State Theatre.

Damnationland presents genre-defying original works from Maine filmmakers that redefine the classic thriller and horror categories. The sixth annual Damnationland program will showcase a handful of world premieres of short films, produced in Maine by Mainers, especially for the Halloween season. These are dark, surreal, and fantastic pieces, offering a sampling of the talent producing independent film in Maine today.

The “Island Zero” trailer will be screened during the Damnationland screenings, which will run through Oct. 28 in Maine and Massachusetts. To see a list of locations, visit damnationland.com.