Directed by: Duncan Jones
Starring: Jake Gyllenhaal, Vera Farmiga, Jeffrey Wright, Michelle Monaghan
Question: What happened to the real Sean Fentress?
Question: Why does the train where the action takes place have the locomotive as the last car? When two trains pass each other at one moment, the others locomotive is at the beginning.
Chosen answer: Trains that shuttle back and forth on shorter stretches don't usually turn around at the terminus. They simply go "backwards". So, in one direction the loco is in the front, on the way back it's at the end of the train.
Audio problem: This scene is repeated multiple times in the movie: usually when the main character enters the "source code" the scene begins by panning over a small pond showing a Canada goose taking flight. However the sound editor makes the mistake of dubbing in a recording of a hen mallard duck.
Colter Stevens: Tell me everything gonna be okay.
Christina Warren: Everything's gonna be okay.
Trivia: Derek Frost has 2 totally different driver's licenses. All personal data is different.
Answer: He died in the train bombing along with all the other passengers. If you're asking what happened to the real Sean Fentress in the alternate time line created at the end of the movie, Colter took over his body and continued to live the life that Fentress had been living.
Casual Person