For a movie that is supposed to depict LARPing, there is a serious lack of attention to detail or even a modicum of respect for the community. Throwing Summer Glau in for the fan service added nothing, and the high notes of Peter Dinklage and Danny Pudi were underused and misplaced. Writing and plot holes abound in this story, but it is sure to gain some sort of notoriety simply because of the lack of materiel featuring LARPers.
Another period drama that ignores the realities of the period to instead focus on the types of sexual relationships made famous by dime store novels. There is no truth to be found in any of the performances or dialogue. However, if you want to pretend to have culture around the easily impressed, then this would be a good movie to pretend that fits the bill.
So far from the novel as to make it a distinct creation. Liv Tyler is completely out of place in this British drama that is unfaithful to the source material as Tyler's accent, or lack thereof, in St. Petersburg. The set design and wardrobe are quite well done, however.