I didn't find it too bad as a kind of watch it but don't take it all too seriously in the spirit of the new Sherlock Holmes films with the advantage that it has John Cusack instead of that twat Robert Downey Jr. The accents were atrocious though, in particular one of the stage hands putting on a Scouse accent that sounded Irish.
Utterly abysmal, in fact one of the worst films I've seen this year and easily the worst John Cusack film I've ever seen (and yes I've seen 2012).
For a suspense thriller, there is virtually no atmosphere or sense of dread. Someone decided to hire a lot of British actors to play Americans and the accents are universally awful, to the point of distraction. I couldn't wait for it to end, and when it finally did, I had no feelings other than indifference.