A film based on a short story by openly gay author Davis Sedaris will open this year's Outfest LA, Los Angeles' LGBT film festival.

C.O.G., which premiered in competition at the Sundance Film Festival in January, stars Jonathan Groff (Glee, Boss), Troian Bellisario (Pretty Little Liars), Casey Wilson (Happy Endings) and Denis O'Hare (True Blood).

In the film, David (played by Groff) heads to Oregon after graduating college to get closer to nature. What he might be really looking for is the freedom to explore his sexuality. But when he meets Bible-thumping Jon (O'Hare), who nudges him to become a fellow C.O.G. (child of God), David appears to lose his way out of the closet.

At the July 11 opening, Outfest will also present its 17th annual Achievement Award to writer-director Kimberley Pierce, who is best know for her 1999 film Boys Don't Cry, which starred Hilary Swank as a transgender man and Chloe Sevigny as his girlfriend.

Previous award recipients include John Waters, Jane Lynch, Bill Condon, Fenton Bailey and Randy Barbato, Don Roos, Donna Deitch, Kenneth Anger, Gregg Araki, Todd Haynes, Jane Anderson, Christine Vachon, Rob Epstein and Jefferey Friedman, Gus Van Sant, Ian McKellen, John Schlesinger and Strand Releasing.

(Related: Jonathan Groff, Murray Bartlett, Frankie Alvarez in HBO comedy about 3 gay friends.)