I love me some David Tennant. And being a Doctor Who, Jessica Jones, Good Omens, Duck Tales, and Broadchurch fan, David Tennant's American accent was as strange-sounding here as it was in the American version of Broadchurch, Gracepoint.
That said, this movie wasn't very good. It wasn't *bad* in the "Snakes on a Plane" or "Sharknado" sense, it was just very middling and uninspired. Forgettable. Boring.
I'm ranking it 5/10 based on David Tennant's exceptional performance in an otherwise terrible piece of work.