Revolution Studios has optioned the comedy script “Exorcism for Dummies,” by first-time scribes Susanna Hoffs Roach, Brian Stampnitsky and Charley Stickney.Offbeat comedy tells of a slacker posing as an exorcist who is shocked to discover he actually has the gift and must recapture the nasty spirits he has accidentally unleashed on the world. Roach, Stampnitsky and Stickney will rewrite the project, which is still early in development. No director or cast has been attached. Roach is best known for being the lead singer of the popular ’80s band the Bangles. Revolution’s Jennifer and Suzanne Todd will produce. Studio partner Todd Garner will be executive producer.