What does the ending of Source Code movie mean?

The ending shows that the Captain changed the world, that the train didn't explode, or that the whole thing didn't happen at all. You can see from the text messages Goodwin never received that she didn't know about the attempted bombing, so she read the text messages and was surprised to see it was the same as what the officer reported.

The doctor finally said how the source code works, indicating that the source code has not worked yet, they may have asked the captain to prepare for a certain mission, but since the captain's identity has changed throughout the issue, So the reality of the situation goes back to before, completely rewritten. Instead of the Captain and the heroine being together, it's Sean, whose mind has been replaced by the Captain, and the real Captain is dead (in the lab).

Extended information

The film "Source Code" is directed by Duncan Jones and stars Jake Gyllenhaal, Vera Farmiga, Michelle Monaghan, etc. People co-starred. The film was released in the United States on April 1, 2011.

The film tells the story of a dead man trying to save Chicago from a nuclear disaster. It is full of suspense, beautifully made, and a classic horror work. This thriller with a science fiction background was not particularly eye-catching at first, but the film is indeed so good that it is simply mind-blowing.

"Source Code" uses a precise and careful plot to convey to the world the belief that we should not forget the Phil Effect and the toast to peace. Director Duncan Jones's magnificent turn has turned a blunt science fiction novel into a touching one. There will be more opportunities for him to show off his talents in the future.

Reference materials

Baidu Encyclopedia-Source Code