“Countdown” (** out of four) was a hokey supernatural thriller about an empathetic nurse (Elizabeth Lail) who stumbles onto an app that is downloadable onto your phone which tells you when you will die and she soon finds she has only three days to live and has to race against the clock to save her life and destroy the app for good. Not bad, and directed with some style by writer/director Justin Dec, but not scary or clever enough to give it any real distinction. After a while, you’ll likely be counting down to film’s end.