Teleport Authority.

By way of Freakgirl, the trailer for Doug Liman's Jumper is now online, starring Hayden Christiansen, Samuel L. Jackson, Jamie Bell, Rachel Bilson, Diane Lane, Michael Rooker, and Tom Hulce. As I noted in this 2006 Comic-Con post, the book by Steven Gould is a concise, clever and well-thought-out take on teleportation...but I don't remember a second jumper, or Jackson's character being nearly as menacing. (Perhaps he's still ticked about the whole Episode III thing.)