A regular lament in this column is British theatre’s increasing dependence on ­cinema for inspiration: 10 of the highest-­profile shows in London are familiar from multiplexes, with the musical version of From Here to Eternity having recently joined a line which is now further extended by Strangers on a Train. Strictly, for copyright reasons, the show is adapted from Patricia Highsmith’s 1950 novel, rather than the Alfred Hitchcock movie released the following year, but it is the Hitch film that has the bigger name recognition and will draw audiences to a show which – in the vision created by director Craig Warner and production designer Tim Goodchild – achieves the most astonishingly cinematic theatre production I have ever seen.Highsmith was noted, especi