First of all, I'll just say that it was a good experience for me to just go see a movie. It was fun. I needed to get out of the house and do something. And there's not much to do in Rexburg recreationally (at least, not outdoors) after a recent snowfall like the ones we had today.
In any case, I thought it was an interesting movie. The ideas pertaining to the Source Code itself were mind-bending. I had to sit there for a minute as the credits rolled and everyone was leaving, trying to wrap my brain around what had just happened. There are a few surprises not contained in the trailers that the movie springs on you. It makes the whole film a lot more interesting. I enjoyed it.
One thing I thought might've made things more interesting was more information about the antagonist, or more character development or something. He/she (I don't want to give anything away) was intriguing, but sort of hard to appreciate (and, by appreciate, I mean, conjure any real emotions about). I thought they might've elaborated on the character, but maybe that was the point. You don't get time to learn about the characters on the train.
After all, you only have eight minutes.
P. S. For those of you out there who are sticklers about swearing (and I'm not saying I'm not, and I'm not condemning you or anything...), I'll have you know that Jake Gyllenhaal does drop a 4-letter f word. Might want to take it into consideration. Just letting you know.