Warner Bros. is developing a project based on the work of manners maven Emily Post, according to Variety.

The as-yet-untitled romantic comedy that will be based on Post’s bestselling book Etiquette and the empire it spawned, including books, seminars and etiquette coaching.

Variety says the movie is being described as a My Fair Lady with reversed gender roles, about a “prissy” Emily Post manners coach who turns a rough-around-the-edges guy into a proper gentleman.

Emily Post was born in 1872 and she became the definitive expert on all things manners related, establishing The Emily Post Institute in 1946. Etiquette has been published in 17 editions and the institute is run today by third generation family members, continuing Emily’s work and serving as a self-described “civility barometer” for American society.

Nick Osborne of Underground Films received input from the Institute for the film’s treatment.

The project follows in what appears to be an emerging trend in developing movies based on non-fiction/self help books. These include last summer’s He’s Just Not That Into You and the in-development What to Expect When You’re Expecting.