'Little Indiscreet Letters': a pleasant, if minor, British comedy about obscenity. Olivia Colman is once again perfect as a sweet, helpless woman; Jessie Buckley, gangly and quarrelsome, is having fun.

But not many sparks of grace and surprise fly from the confrontation. Thea Sharrock as director lacks staging details with which to enhance situations with enormous possibilities. screenwriter Jonny Sweet cannot quite find a tone that, a century after the events, could have been much more daring.