In “An Innocent Little Game,” Pandora’s box opens wide when a model couple allows friends and family to believe they’re calling it quits. As helmed by TV and lit personality Bernard Rapp, watchable but pulse-free adaptation of a hit play is a way-too-polite comedy of manners. Despite otherwise talented name cast, potentially tantalizing exercise rarely rises above the mildly amusing. Pic seems unlikely to travel far.
Claire (Sandrine Kiberlain) and Bruno (Yvan Attal) have been living together for 12 years. When Bruno’s nerdy cousin Patrick (Lionel Abelanski) likens them to the stiffly blissful pair in a cookie ad, Claire announces their imminent split to shut him up. Bruno wants to nip the rumor in the bud, but as word of their alleged break spreads, others — assuming it’s now OK to speak frankly — start revealing what they really think of them and their relationship. Claire’s best friend Axelle (Marina Fois) says way more than she should, while the enigmatic Serge (Jean-Paul Rouve) slyly courts Claire. Running gags don’t move fast enough as episodic action transpires over one long summer day at the country estate that Bruno’s widowed mom is selling.