So yeah, Dejà Vu: You've seen it all before. Take that, Tony Scott and Jerry Bruckheimer! Except you haven't quite. The story goes like this: The ferry blows up (seen it), Denzel Washington struts on the scene to investigate (seen it), clues are discovered (seen it), a dead girl is found under mysterious circumstances (seen it), Val Kilmer arrives looking kind of pudgy (...), and everyone heads off to a top-secret government base and climbs into a gigantic spark plug. There, joined by the usual group of wiseass technicians, they begin to retrace events with the help of Snow White, a next-level surveillance system linked up, naturally, to seven satellites. The console renders real-time composite images of anything that happened four days ago, from any angle, through all obstacles, and in the visual vocabulary of the 21st-century blockbuster. Except that actually it's a time machine. (Now here is something new.) Of course, Scott and his screenwriters (Bill Marsilii and Terry Rossio) are less interested in concepts to explore than high-concept gimmickry. But why complain when it results in a car chase that simultaneously blows shit up on two different time planes?