Source Code is an above average science fiction thriller thanks to an intelligent script by Ben Ripley, taut direction by Duncan Jones and a terrific performance from Jake Gyllenhaal. Jake is a military pilot who unwillingly becomes the subject of a program that enables him to relive the final 8 minutes of a man who perished aboard a train when a terrorist bomb explodes. The idea is for him to discover the identity of the bomber before he or she commits further acts of terrorism.
When Jake's character, Captain Colter Stevens, is not on the train he's in a confined space with only a small screen from which to observe the people in charge: Jeffrey Wright and Vera Farmiga.
We're never quite sure what Farmiga's character is thinking which adds to the ominous undertones of the script. Wright's role is restricted to that of the usual soulless bureaucrat. Michelle Monaghan is the pretty girlfriend of the man whose identity Stevens assumes while on the train.
At a little over 90 minutes long Source Code is a good popcorn flick. Perhaps it could have been more but the intent here is to make a good Groundhog Day type sci fi actioner and if you don't go expecting too much more you'll be happy.