Take a fascination for rare books, some bootleg gin and a pie made from the curious ingredient of potato peel and you have The Guernsey Literary and Potato Peel Pie Society.

Once you get past the rather long winded title, based on a novel by Mary Ann Shaffer (and Annie Burrows) you have a fairly descent film where Lilly James stars as writer and journalist Juliette Ashton who, in the midst of a tour for her latest book, becomes intrigued by a letter she receives from a resident of the island of Guernsey who writes to her enquiring about a book for his local book club, hence the name.

Curious about the existence of the club, possibly because they are one of the few to be interested in her work, Juliette sets off for the island, which is still recovering from the effects of Nazi occupation. Soon after her arrival she discovers a mystery surrounding the disappearance of local single mother.

Apart from being a fantastic advertisement for the local tourism industry; which beforehand the impending fear was that this was the only purpose of the film. The story is up to a point what the British film industry does best, namely quaint eccentricity.

Lilly James is believable as a writer intrigued by an idea that won’t leave her, curious about events as they uncover themselves and tormented by the need to write but being conflicted by not getting the reaction from the locals she thought she would get.

Supported by a well performing cast including Katherine Parkinson, Penelope Wilton and Tom Courtney who fulfill their roles well.

Where the film falls down is by concentrating a bit too much on the romantic aspects rather than the intriguing mystery which is the main catalyst for events.

In short The Guernsey Literary and Potato Peel Pie is an enjoyable enough film but suffers from being about fifteen minutes too long.