Inspired by Boccaccio's The Decameron, The Little Hours is an unapologetic sex farce built around a 14th Century nunnery where the sisters are anything but pious. In the hands of director Jeff Baena, Little Hours attempts to banish the shame that often surrounds repressed desire, particularly in a convent to which many of the women have been sent because their families don't know what else to do with them. Three nuns (Alison Brie, Aubrey Plaza and Kate Micucci) connive under the supervision of a mother superior (Molly Shannon), who's no saint, either. The plot kicks into a higher gear when the resident priest (John C. Reilly) introduces a hunky runaway (Dave Franco) into the mix. Franco's Massetto has taken flight because a nobleman (Nick Offerman) caught him dallying with the lady of the household (Lauren Weedman). Reilly's father Tommasso deceives the nuns, telling them that Massetto is deaf and mute, a complication that adds to the movie's cleverly calculated misunderstandings. Fred Armisen plays a bishop who shows up late in the proceedings to condemn everyone's behavior. Baena makes his intentions clear from the outset with ample use of the "F" word as he pushes (perhaps too hard) toward irreverence. Avoiding period language, the movie genially embraces the all-too-human pursuit of pleasure. Put another way, Little Hours seems to be saying that, despite admonitions to the contrary, bawdy isn't necessarily bad. Amusing when it's working, which (alas) isn't all of the time.