As Atlanta’s annual LGBT film fest hurtles toward its 25th anniversary event in October, Out on Film unveils its headliner screenings and teases us with video trailers to its opening, closing and centerpiece films, “Gayby,” “Cloudburst” and “Bear City 2.”

In short, that’s gay parenting, lesbians including Olympia Dukakis, and a sequel to one of the festival’s most popular films. Out on Film is scheduled for Oct. 4-11 at Midtown Art Cinema.

The Opening Night film on Oct. 4 is Jonathan Lisecki’s feature film “Gayby” (video above) about a gay man and his female best friend who decide to have a child together – the old fashioned way. It’s based on Lisecki’s award-winning short film from several years ago.

“’Gayby’ is a very funny, warm crowd pleaser, the perfect opening night film,” Out On Film Director Jim Farmer says in announcing the headliners on Monday.

This year’s Centerpiece Screening, the already buzzed about “Cloudburst” (video below), stars Academy Award winners Olympia Dukakis and Brenda Fricker as a longtime lesbian couple who hit the road to Nova Scotia to get married legally. It screens Oct. 6.

“‘Cloudburst’ is an exceptional film with lived-in chemistry between Dukakis and Fricker,” Farmer continues. “It’s been a sensation around the world. It anchors Out On Film’s annual Super Saturday, which features films from morning to late night, including new classics, a modern day classic, shorts programs and great guests.”

Closing the festival on Oct. 11 will be the Southern premiere of Doug Langway’s “BearCity 2: The Proposal” (bottom video). The cast from the 2010 original returns with new faces such as Varla Jean Merman and gay favorite Kathy Najimy. “BearCity 2” is as sexy and humorous as the first film with a lot of sweetness – and fur!

“‘BearCity’ was one of the most successful films in Out On Film history and we are elated to be bringing the sequel to the South,” Farmer says.

More 2012 festival films will be announced soon to round out the eight-day schedule. For more information, visit Out on Film online.