The first trailer and poster for director Kyle Patrick Alvarez’s adaptation of the David Sedaris short story C.O.G. have been released online.  The autobiographical comedy stars Jonathan Groff (Glee) as a young man who plans a summer trip in the Northwest with his friend working on a farm, only to have his friend bail on him.  The pic looks to sufficiently capture Sedaris’ dry humor, and the talented Groff gets the chance to lead a film of his own.  The ensemble cast is impressive as well, and overall C.O.G. looks to be a pretty charming small-town story told through Sedaris’ unique point of view.

Hit the jump to check out the trailer and poster.  The film also stars Troian Bellisario, Corey Stoll, Denis O’Hare, and Casey Wilson.  C.O.G. will be available on iTunes and in theaters on September 20th.

Click over to Apple to watch in HD.

Here’s the official synopsis for C.O.G.:

This autobiographical comedy is the first-ever screen adaptation of the work of acclaimed writer David Sedaris. Jonathan Groff (Glee) stars as David, a young man who plans a summer in the Northwest with his friend Jennifer (Troian Bellisario of Pretty Little Liars), working on a farm. But when Jennifer unexpectedly bails on him, David is left to dirty his hands alone and jump into a series of misadventures that will take him to unfamiliar - and hilariously uncomfortable - places. A presentation of Focus World, the alternative distribution division of Focus Features, and Screen Media Films.