"Mercy," directed by Timur Bekmambetov ("Wanted") with a crisp short-attention-span gusto (the film has three editors, and you can see why), is like "Minority Report" meets "Memento" meets "Cops" meets a crime-detective video game. It threads Raven’s investigation through a multimedia mixmaster. And Pratt is good in it! He got swallowed up in franchise-ville because he let himself become an actor of bland good vibes, but here he’s sharp and nasty and a bit "dark," which looks a lot better on him.