Jake Gyllenhaal in "Source Code"

"Jake Gyllenhaal is in negotiations to star in sci-fi thriller "Source Code" for Vendome Pictures and the Mark Gordon Co.

Duncan Jones with his father David Bowie at the premiere of "Moon", Sundance Film Festival on 23rd January 23, 2009.

Duncan Jones will direct and Mark Gordon will produce with Vendome's CEO Philippe Rousselet and Jordan Wynn. Production is slated to begin during the first quarter.
Jake Gyllenhaal as Marine Anthony Swofford in "Jarhead" (2005), directed by Sam Mendes.

"Source Code" centers on a soldier who wakes up in the body of an unknown commuter and is forced to live and relive a harrowing train bombing until he can determine who is responsible for it.

Project had originally been set up at Universal in early 2007 when the studio bought Ben Ripley's screenplay and attached Topher Grace to star. Universal tapped Shane Abbess to helm last year. Current script includes revises by Billy Ray ("State of Play").Gyllenhaal is currently filming "Love and Other Drugs", helmed by Ed Zwick, and will next be seen in Jim Sheridan's "Brothers" and Disney's "Prince of Persia: The Sands of Time".

Jones is currently writing the screenplay of the upcoming film "Mute", which he will also direct. He has previously directed "Moon", starring Sam Rockwell.
Source: www.variety.com

As Duncan Jones’ Twitter account says:

"Mute still in the plans, just slightly delayed. It’s a hard sell... whereas Source Code came with an offer hard to refuse".

First paragraphs of "Source Code" script:
Synopsis: Guy with amnesia wakes up on a train. The train may or may not be a target in a terrorist attack. Sci-fi.Source Code is very much like the Denzel Washington vehicle "Deja-Vu". But, you know, actually good. Writer: Ben Ripley.

Denzel Washington and Kimberly Elise in "The Manchurian Candidate" (2004), directed by Jonathan Demme.

"Every time I watch the original "Manchurian Candidate", I'm teased by the possibility that there may be another, deeper, level of conspiracy, one we're intended to sense without quite understanding. It involves the character of the woman named Rose or Rosie, who Marco meets on a train; she was played in 1962 by Janet Leigh and this time by Kimberly Elise". Source: rogerebert.suntimes.com

"Source Code" never gets old. There are a couple of key devices the writer uses to keep us interested. First, he creates an extremely likable female character. She sits across from the seat our hero is always warped into. And so amidst all this terrorism chaos, you're intrigued by their relationship".
Source: scriptshadow.blogspot.com