Source Code (2011).
When it comes right down to it, there's just one thing you wanna know about Source Code.
I can't blame you - I'd been wondering the same thing myself.
Got part of my answer when I finally noticed it was from director Duncan Jones - the man behind 2009's Moon. This inexplicably isn't mentioned in any of the film's advertising. Had I known this sooner, I myself - and doubtlessly others like me - probably would've seen it on its opening weekend.
Moon's theatrical run was extremely limited. Because of this, the film remains relatively unknown amongst general audiences - at least in comparison to the wide releases which most other movies receive. So focusing on Jones as the director might only have appealed to what otherwise would have been a very narrow - albeit also a vocal, and supportive - market.
And yet, none of this is the worst offense committed by the film's ad campaign. For that, we must travel back to the aforementioned question - which, in the simplest terms, is this: Is Source Code really just 2006's Déjà Vu all over again?
I'm glad to report that the answer is a resounding no. While the director's sophomore effort fails to achieve the same dizzying heights of his first film, Source Code does manage to rise above most of the unfortunate comparisons that one could make (for instance, the Nicolas Cage movie Next).
Are there any other films which might arguably tackle similar issues in a more satisfactory manner? Sure, I might make a case for Los Cronocrímenes/Timecrimes being better - but that's apples and oranges, really... and both films are ultimately enjoyable on their own merits.
In summation, while Source Code is unlikely to ever change your world, at least you should still leave the theater feeling entertained... and, more importantly, not at all like you've wasted your time and money (and in the end, isn't that what really matters?)!