Tamsin Greig is the only high point in this mediocre thriller about a woman’s hallucinations.

A foreigner working through the last ten years of British cinema could be forgiven for thinking that this is a nation composed entirely of council estates, sports fields and leftover shreds of the Second World War. After such a torrent of grittiness, Tamara Drewe feels like it’s going to be a real treat – which makes it even more of a shame when it fails to deliver on almost every level.